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Peroxide (Member Profile)

bcglorf says...

You are exactly right, the red line is directly measured temperature, and it shows that we are indeed breaking records. The trick is it only shows that we have hit the record for the last 100 years for which we actually have a measured record. The temperature over the last 2k years is not directly measured, but derived from proxies like tree rings. Those temperature reconstructions never hit the heights of the measured record. The speaker in the video then declares that current temperature is then a record over 2k years. The trick is to look closer. When we state that the reconstruction of the last 2k years never hits the current measured records it doesn't only mean it never hit them before today, it means that even where the measured temperature hits the record today, the reconstruction STILL doesn't come close to hitting the measured record. Seems very strong evidence that the reconstruction might have missed a record like today that happened over the last 2k years, as clearly they missed THIS ONE.


In reply to this comment by Peroxide:
I can't understand how you are interpreting Mann's graph, you do realize the red line at the end is not a projection, but in fact current measurements...

So how are you coming to the conclusion that we are not (already, if not soon) breaking records?

In reply to this comment by bcglorf:
>> ^alcom:

By your own admission, the composite readings are now at record highs. Nowhere in my previous post did I mention that these measurements were exactly equal to the 0.8 instrumental record. I only said that they followed the same directional trend. Read it and weep, a 2000 year-old record is a 2000 year-old record.
To argue that 'Mann's statement that the EIV construction is the most accurate,' is to willfully ignore all the other data sources. You completely miss the point that instrumental data is by far the most accurate. Proxy reconstructions are relied on in the absence of instrumental data.
The lack of widespread instrumental climate records before the mid 19th century, however, necessitates the use of natural climate archives or “proxy” data such as tree-rings, corals, and ice cores and historical documentary records to reconstruct climate in past centuries.
The curve of this warming trend is gradually accellerating accourding to all data sources, even if you ignore the two instrumental lines. And what a coincidence that it matches the timeline of the industrial revolution. Ignore science at your own peril!
>> ^bcglorf:
What graph are you reading?
CPS Land with uncertainties: Peaked at 0.05 in 600, but yes a new peak in the lat 1990's at 0.15(not 0.8), recent temp is the internal record by only 0.1.
Mann and Jones 2003: current peak at 0.15(not 0.8), but current is the record by 0.25.
Esper et. Al 2002: peaks once in 990 and again in 1990 at negative 0.05, not positive 0.8 nor is current warming a record.
CPS land+ocn with uncertainties: peaks at 0.2 (not 0.8) and only starts at 1500 not sure how much the record would've been set by if it included the year 600 where land alone hit 0.05.
Briffa et al. : Series begins in 1400, but again peaks at 0.15 (not 0.8). Can't tell from the graph how much of a record but by Briffa et al's original 2001 paper it's by 0.2
Crowly and Lowery (2000): peaks at 0.15(not 0.8), granted it current warming sets the record within the series, by 0.25 higher than 1100.
Jones et al. (1999): peaks at 0.05(not 0.8), current is record by 0.1
Oerlemans (2005) and both borehole sample go back less than 500 years. The boreholes who a smooth curve throughout, with warming starting 500, not 100 years ago. They all peak at 0.2 or lower, again not 0.8.

If I repeat my main point, I think it is reinforced by each of the series above. Instrumental measured warming is completely anomalous compared to the proxy reconstructions. The instrumental record peaks fully 0.6 degrees higher than any of the proxy series. How can anyone look at that and NOT object to the declaration that the last 2k years as shown by proxies proves temperatures have been far cooler and more stable than the last 100 years as shown on the instrumental record. If you instead compare like to like, and compare the last 100 years as projected by each proxy and not the instrumental record, you clearly see that the last 100 years is anything but a radical anomaly.
If you accept Mann's statement that the EIV construction is the most accurate, it can be easily said that the last 100 years, as appears in proxy reconstructions, isn't much of an anomaly at all.

>> ^alcom:
Ah, now I see your point, bcglorf. Of the various methodologies, the 2 instrumental record sets of the last 100 years are the only ones that show the extreme spike of temperature. The composite reconstructions have not yet shown data that is above previously held records in the last 2 millennia, with the exception of the following:
CPS Land with uncertainties
Mann and Jones (2003)
Esperg et al. (2002)
CPS land+ocn with uncertainties
Briffa et al. (2005)
Crowely and Lowery (2000)
Jones et al. (1999)
Oerlemans (2005)
Mann et al. Optimal Borehole (2003)
Huang et al. Borehole (2000)
If you closely follow these lines, you will see that each plot above has indeed set 2000 year-old records in the last 25 years within their own recorded plots, even if not as pronounced as the instrumental record highlighted by the red line. I'm not sure why the EIV lines stop at 1850, but I'm also not a climatologist. The instrumental record has more or less agreed with the EIV record since its existence, including an extending cooling trend midway through this century. The sharp divergence is not fully understood perhaps, but I still think it foolish to ignore the provable, measurable and pronounced upward trend in all calculated measurements.
>> ^bcglorf:
>> ^alcom:
After a cursory reading of Mann's Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia, I can't see how climate change deniers can both read about his methodology AND at the same time gripe about a bias towards measurements that support his argument while ignoring conflicting measurements through other means.
These measurements AGREE. The regression measurement data seems to have a wider variance as you go backwards, but they all trend in the same directions both up and down over the last 2000 years. (I'm looking at the graph here: http://www.pnas.org/content/105/36/13252/F3.expansion.html ) converge and climb at the same incredible rate at the end (the last 25 years or so.) Show me ANY scientific data that reports a measurement of +.8°C over such a short period of time.
As for the polynomial curve objection, the variation in measurements over such a limited data set my not yet reveal the true nature of the curve. And Earth's feedback mechanisms may already be at work to counteract the difference in atmospheric composition. For example, trees will grow faster and more quickly in slightly warmer temperatures with elevated CO2 levels, and naturally counteract the effects of fossil fuel burning by simply converting more of it into O2. There are undoubtedly many, many more factors at play. I'm suggesting perhaps that apparent "straight line" graphing is currently the fastest rate of increase possible based on the feedback systems that are at work.
The point is that it is a losing battle, according to the current trend. At some point, these feedback systems will fail (eg., there will come a point when it is so hot in a region that no type of tree will continue to grow and absorb CO2) and worst still, there are things like the methane in permafrost that will exacerbate the problem further. This isn't like a religious doomsday scenario, the alarm bells are not coming from a loony prophet but from real, measurable evidence that so many people continue to ignore. I'd rather be wrong and relieved that there is no climate crisis and clean energy initiatives end up being a waste of time and money than wrong that there IS in fact cause to make serious changes. The doubt that has driven so much misinformation will at some point be exposed for the stupidity that it truly is.

Look closer at the graph in http://www.pnas.org/content/105/36/13252/F3.expansion.html for me. It is the graph I was talking about. NONE of the reconstructions from proxy sources spike up to 0.8 at the end. The all taper off short of 0.2, the bold red(instrumental) line makes them very hard to see precisely. The closest curve to the red that can be seen is the grey one, which is in fact the other instrumental record they include, and even it stops below 0.6. What is more, the green EIV reconstruction peaks past 0.2 twice over the last 2k years. It also spikes much more quickly around 900 and 1300. Most noteworthy of all is if you read further up in Mann's report, because the big reason for re-releasing this version of his paper is to evaluate the EIV method because statisticians recommended as far more appropriate. Mann notes in his results as well stating that of all the methods, 'we place the greatest confidence in the EIV reconstructions'.
My key point is glaringly obvious when looking at Mann's data, even on the graph. The instrumental record of the last 100 years spikes in an unprecedented fashion. The proxy reconstruction of that same time frame does not. Two different methodologies yielding 2 different results. The speaker in this video points at that and declares it's because of human emissions 100 years ago, but we must look at the fact the methodology changed at that exact point too. The EIV reconstruction was the latest attempt to bridge the gap between the proxy and instrumental records, and although it more closely matches the instrumental, it still doesn't spike 0.8 degrees over the last 100 years, and more interestingly it also shows much greater variation over the last 2k years. Enough variation in fact that if you look at just the green EIV line, the last 100 years isn't particularly note worthy or anomalous.





The speaker in the video makes a very big deal though about the current 0.8 of the instrumental record, and similarly a very big deal about it being unprecedented in the last 10k years, which you have to admit has been plainly proven as apples to oranges.

Yes, most current proxies show a 2k year old record, except the EIV which is the most recent and deemed most accurate record. If you can accept comparing reconstructions using the same proxy data but different analysis, the EIV proxy reconstruction shows that current temperatures are not record breaking at all.

If you want to say that "the curve of this warming trend is gradually accellerating accourding to all data sources" I'd say you need also observe warming trends in the reconstructions over the last 2k years. Again, the rate of change over the last century is not unprecedented in the proxy records over the last 2k years. You can again plainly see that similarly or more severe warming and/or cooling within the last 2k years in the proxy reconstructions.


bcglorf (Member Profile)

Peroxide says...

I can't understand how you are interpreting Mann's graph, you do realize the red line at the end is not a projection, but in fact current measurements...

So how are you coming to the conclusion that we are not (already, if not soon) breaking records?

In reply to this comment by bcglorf:
>> ^alcom:

By your own admission, the composite readings are now at record highs. Nowhere in my previous post did I mention that these measurements were exactly equal to the 0.8 instrumental record. I only said that they followed the same directional trend. Read it and weep, a 2000 year-old record is a 2000 year-old record.
To argue that 'Mann's statement that the EIV construction is the most accurate,' is to willfully ignore all the other data sources. You completely miss the point that instrumental data is by far the most accurate. Proxy reconstructions are relied on in the absence of instrumental data.
The lack of widespread instrumental climate records before the mid 19th century, however, necessitates the use of natural climate archives or “proxy” data such as tree-rings, corals, and ice cores and historical documentary records to reconstruct climate in past centuries.
The curve of this warming trend is gradually accellerating accourding to all data sources, even if you ignore the two instrumental lines. And what a coincidence that it matches the timeline of the industrial revolution. Ignore science at your own peril!
>> ^bcglorf:
What graph are you reading?
CPS Land with uncertainties: Peaked at 0.05 in 600, but yes a new peak in the lat 1990's at 0.15(not 0.8), recent temp is the internal record by only 0.1.
Mann and Jones 2003: current peak at 0.15(not 0.8), but current is the record by 0.25.
Esper et. Al 2002: peaks once in 990 and again in 1990 at negative 0.05, not positive 0.8 nor is current warming a record.
CPS land+ocn with uncertainties: peaks at 0.2 (not 0.8) and only starts at 1500 not sure how much the record would've been set by if it included the year 600 where land alone hit 0.05.
Briffa et al. : Series begins in 1400, but again peaks at 0.15 (not 0.8). Can't tell from the graph how much of a record but by Briffa et al's original 2001 paper it's by 0.2
Crowly and Lowery (2000): peaks at 0.15(not 0.8), granted it current warming sets the record within the series, by 0.25 higher than 1100.
Jones et al. (1999): peaks at 0.05(not 0.8), current is record by 0.1
Oerlemans (2005) and both borehole sample go back less than 500 years. The boreholes who a smooth curve throughout, with warming starting 500, not 100 years ago. They all peak at 0.2 or lower, again not 0.8.

If I repeat my main point, I think it is reinforced by each of the series above. Instrumental measured warming is completely anomalous compared to the proxy reconstructions. The instrumental record peaks fully 0.6 degrees higher than any of the proxy series. How can anyone look at that and NOT object to the declaration that the last 2k years as shown by proxies proves temperatures have been far cooler and more stable than the last 100 years as shown on the instrumental record. If you instead compare like to like, and compare the last 100 years as projected by each proxy and not the instrumental record, you clearly see that the last 100 years is anything but a radical anomaly.
If you accept Mann's statement that the EIV construction is the most accurate, it can be easily said that the last 100 years, as appears in proxy reconstructions, isn't much of an anomaly at all.

>> ^alcom:
Ah, now I see your point, bcglorf. Of the various methodologies, the 2 instrumental record sets of the last 100 years are the only ones that show the extreme spike of temperature. The composite reconstructions have not yet shown data that is above previously held records in the last 2 millennia, with the exception of the following:
CPS Land with uncertainties
Mann and Jones (2003)
Esperg et al. (2002)
CPS land+ocn with uncertainties
Briffa et al. (2005)
Crowely and Lowery (2000)
Jones et al. (1999)
Oerlemans (2005)
Mann et al. Optimal Borehole (2003)
Huang et al. Borehole (2000)
If you closely follow these lines, you will see that each plot above has indeed set 2000 year-old records in the last 25 years within their own recorded plots, even if not as pronounced as the instrumental record highlighted by the red line. I'm not sure why the EIV lines stop at 1850, but I'm also not a climatologist. The instrumental record has more or less agreed with the EIV record since its existence, including an extending cooling trend midway through this century. The sharp divergence is not fully understood perhaps, but I still think it foolish to ignore the provable, measurable and pronounced upward trend in all calculated measurements.
>> ^bcglorf:
>> ^alcom:
After a cursory reading of Mann's Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia, I can't see how climate change deniers can both read about his methodology AND at the same time gripe about a bias towards measurements that support his argument while ignoring conflicting measurements through other means.
These measurements AGREE. The regression measurement data seems to have a wider variance as you go backwards, but they all trend in the same directions both up and down over the last 2000 years. (I'm looking at the graph here: http://www.pnas.org/content/105/36/13252/F3.expansion.html ) converge and climb at the same incredible rate at the end (the last 25 years or so.) Show me ANY scientific data that reports a measurement of +.8°C over such a short period of time.
As for the polynomial curve objection, the variation in measurements over such a limited data set my not yet reveal the true nature of the curve. And Earth's feedback mechanisms may already be at work to counteract the difference in atmospheric composition. For example, trees will grow faster and more quickly in slightly warmer temperatures with elevated CO2 levels, and naturally counteract the effects of fossil fuel burning by simply converting more of it into O2. There are undoubtedly many, many more factors at play. I'm suggesting perhaps that apparent "straight line" graphing is currently the fastest rate of increase possible based on the feedback systems that are at work.
The point is that it is a losing battle, according to the current trend. At some point, these feedback systems will fail (eg., there will come a point when it is so hot in a region that no type of tree will continue to grow and absorb CO2) and worst still, there are things like the methane in permafrost that will exacerbate the problem further. This isn't like a religious doomsday scenario, the alarm bells are not coming from a loony prophet but from real, measurable evidence that so many people continue to ignore. I'd rather be wrong and relieved that there is no climate crisis and clean energy initiatives end up being a waste of time and money than wrong that there IS in fact cause to make serious changes. The doubt that has driven so much misinformation will at some point be exposed for the stupidity that it truly is.

Look closer at the graph in http://www.pnas.org/content/105/36/13252/F3.expansion.html for me. It is the graph I was talking about. NONE of the reconstructions from proxy sources spike up to 0.8 at the end. The all taper off short of 0.2, the bold red(instrumental) line makes them very hard to see precisely. The closest curve to the red that can be seen is the grey one, which is in fact the other instrumental record they include, and even it stops below 0.6. What is more, the green EIV reconstruction peaks past 0.2 twice over the last 2k years. It also spikes much more quickly around 900 and 1300. Most noteworthy of all is if you read further up in Mann's report, because the big reason for re-releasing this version of his paper is to evaluate the EIV method because statisticians recommended as far more appropriate. Mann notes in his results as well stating that of all the methods, 'we place the greatest confidence in the EIV reconstructions'.
My key point is glaringly obvious when looking at Mann's data, even on the graph. The instrumental record of the last 100 years spikes in an unprecedented fashion. The proxy reconstruction of that same time frame does not. Two different methodologies yielding 2 different results. The speaker in this video points at that and declares it's because of human emissions 100 years ago, but we must look at the fact the methodology changed at that exact point too. The EIV reconstruction was the latest attempt to bridge the gap between the proxy and instrumental records, and although it more closely matches the instrumental, it still doesn't spike 0.8 degrees over the last 100 years, and more interestingly it also shows much greater variation over the last 2k years. Enough variation in fact that if you look at just the green EIV line, the last 100 years isn't particularly note worthy or anomalous.





The speaker in the video makes a very big deal though about the current 0.8 of the instrumental record, and similarly a very big deal about it being unprecedented in the last 10k years, which you have to admit has been plainly proven as apples to oranges.

Yes, most current proxies show a 2k year old record, except the EIV which is the most recent and deemed most accurate record. If you can accept comparing reconstructions using the same proxy data but different analysis, the EIV proxy reconstruction shows that current temperatures are not record breaking at all.

If you want to say that "the curve of this warming trend is gradually accellerating accourding to all data sources" I'd say you need also observe warming trends in the reconstructions over the last 2k years. Again, the rate of change over the last century is not unprecedented in the proxy records over the last 2k years. You can again plainly see that similarly or more severe warming and/or cooling within the last 2k years in the proxy reconstructions.

Climate Change; Latest science update

alcom says...

By your own admission, the composite readings are now at record highs. Nowhere in my previous post did I mention that these measurements were exactly equal to the 0.8 instrumental record. I only said that they followed the same directional trend. Read it and weep, a 2000 year-old record is a 2000 year-old record.

To argue that 'Mann's statement that the EIV construction is the most accurate,' is to willfully ignore all the other data sources. You completely miss the point that instrumental data is by far the most accurate. Proxy reconstructions are relied on in the absence of instrumental data.

The lack of widespread instrumental climate records before the mid 19th century, however, necessitates the use of natural climate archives or “proxy” data such as tree-rings, corals, and ice cores and historical documentary records to reconstruct climate in past centuries.

The curve of this warming trend is gradually accellerating accourding to all data sources, even if you ignore the two instrumental lines. And what a coincidence that it matches the timeline of the industrial revolution. Ignore science at your own peril!

>> ^bcglorf:

What graph are you reading?
CPS Land with uncertainties: Peaked at 0.05 in 600, but yes a new peak in the lat 1990's at 0.15(not 0.8), recent temp is the internal record by only 0.1.
Mann and Jones 2003: current peak at 0.15(not 0.8), but current is the record by 0.25.
Esper et. Al 2002: peaks once in 990 and again in 1990 at negative 0.05, not positive 0.8 nor is current warming a record.
CPS land+ocn with uncertainties: peaks at 0.2 (not 0.8) and only starts at 1500 not sure how much the record would've been set by if it included the year 600 where land alone hit 0.05.
Briffa et al. : Series begins in 1400, but again peaks at 0.15 (not 0.8). Can't tell from the graph how much of a record but by Briffa et al's original 2001 paper it's by 0.2
Crowly and Lowery (2000): peaks at 0.15(not 0.8), granted it current warming sets the record within the series, by 0.25 higher than 1100.
Jones et al. (1999): peaks at 0.05(not 0.8), current is record by 0.1
Oerlemans (2005) and both borehole sample go back less than 500 years. The boreholes who a smooth curve throughout, with warming starting 500, not 100 years ago. They all peak at 0.2 or lower, again not 0.8.

If I repeat my main point, I think it is reinforced by each of the series above. Instrumental measured warming is completely anomalous compared to the proxy reconstructions. The instrumental record peaks fully 0.6 degrees higher than any of the proxy series. How can anyone look at that and NOT object to the declaration that the last 2k years as shown by proxies proves temperatures have been far cooler and more stable than the last 100 years as shown on the instrumental record. If you instead compare like to like, and compare the last 100 years as projected by each proxy and not the instrumental record, you clearly see that the last 100 years is anything but a radical anomaly.
If you accept Mann's statement that the EIV construction is the most accurate, it can be easily said that the last 100 years, as appears in proxy reconstructions, isn't much of an anomaly at all.

>> ^alcom:
Ah, now I see your point, bcglorf. Of the various methodologies, the 2 instrumental record sets of the last 100 years are the only ones that show the extreme spike of temperature. The composite reconstructions have not yet shown data that is above previously held records in the last 2 millennia, with the exception of the following:
CPS Land with uncertainties
Mann and Jones (2003)
Esperg et al. (2002)
CPS land+ocn with uncertainties
Briffa et al. (2005)
Crowely and Lowery (2000)
Jones et al. (1999)
Oerlemans (2005)
Mann et al. Optimal Borehole (2003)
Huang et al. Borehole (2000)
If you closely follow these lines, you will see that each plot above has indeed set 2000 year-old records in the last 25 years within their own recorded plots, even if not as pronounced as the instrumental record highlighted by the red line. I'm not sure why the EIV lines stop at 1850, but I'm also not a climatologist. The instrumental record has more or less agreed with the EIV record since its existence, including an extending cooling trend midway through this century. The sharp divergence is not fully understood perhaps, but I still think it foolish to ignore the provable, measurable and pronounced upward trend in all calculated measurements.
>> ^bcglorf:
>> ^alcom:
After a cursory reading of Mann's Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia, I can't see how climate change deniers can both read about his methodology AND at the same time gripe about a bias towards measurements that support his argument while ignoring conflicting measurements through other means.
These measurements AGREE. The regression measurement data seems to have a wider variance as you go backwards, but they all trend in the same directions both up and down over the last 2000 years. (I'm looking at the graph here: http://www.pnas.org/content/105/36/13252/F3.expansion.html ) converge and climb at the same incredible rate at the end (the last 25 years or so.) Show me ANY scientific data that reports a measurement of +.8°C over such a short period of time.
As for the polynomial curve objection, the variation in measurements over such a limited data set my not yet reveal the true nature of the curve. And Earth's feedback mechanisms may already be at work to counteract the difference in atmospheric composition. For example, trees will grow faster and more quickly in slightly warmer temperatures with elevated CO2 levels, and naturally counteract the effects of fossil fuel burning by simply converting more of it into O2. There are undoubtedly many, many more factors at play. I'm suggesting perhaps that apparent "straight line" graphing is currently the fastest rate of increase possible based on the feedback systems that are at work.
The point is that it is a losing battle, according to the current trend. At some point, these feedback systems will fail (eg., there will come a point when it is so hot in a region that no type of tree will continue to grow and absorb CO2) and worst still, there are things like the methane in permafrost that will exacerbate the problem further. This isn't like a religious doomsday scenario, the alarm bells are not coming from a loony prophet but from real, measurable evidence that so many people continue to ignore. I'd rather be wrong and relieved that there is no climate crisis and clean energy initiatives end up being a waste of time and money than wrong that there IS in fact cause to make serious changes. The doubt that has driven so much misinformation will at some point be exposed for the stupidity that it truly is.

Look closer at the graph in http://www.pnas.org/content/105/36/13252/F3.expansion.html for me. It is the graph I was talking about. NONE of the reconstructions from proxy sources spike up to 0.8 at the end. The all taper off short of 0.2, the bold red(instrumental) line makes them very hard to see precisely. The closest curve to the red that can be seen is the grey one, which is in fact the other instrumental record they include, and even it stops below 0.6. What is more, the green EIV reconstruction peaks past 0.2 twice over the last 2k years. It also spikes much more quickly around 900 and 1300. Most noteworthy of all is if you read further up in Mann's report, because the big reason for re-releasing this version of his paper is to evaluate the EIV method because statisticians recommended as far more appropriate. Mann notes in his results as well stating that of all the methods, 'we place the greatest confidence in the EIV reconstructions'.
My key point is glaringly obvious when looking at Mann's data, even on the graph. The instrumental record of the last 100 years spikes in an unprecedented fashion. The proxy reconstruction of that same time frame does not. Two different methodologies yielding 2 different results. The speaker in this video points at that and declares it's because of human emissions 100 years ago, but we must look at the fact the methodology changed at that exact point too. The EIV reconstruction was the latest attempt to bridge the gap between the proxy and instrumental records, and although it more closely matches the instrumental, it still doesn't spike 0.8 degrees over the last 100 years, and more interestingly it also shows much greater variation over the last 2k years. Enough variation in fact that if you look at just the green EIV line, the last 100 years isn't particularly note worthy or anomalous.



Climate Change; Latest science update

bcglorf says...

What graph are you reading?

CPS Land with uncertainties: Peaked at 0.05 in 600, but yes a new peak in the lat 1990's at 0.15(not 0.8), recent temp is the internal record by only 0.1.

Mann and Jones 2003: current peak at 0.15(not 0.8), but current is the record by 0.25.

Esper et. Al 2002: peaks once in 990 and again in 1990 at negative 0.05, not positive 0.8 nor is current warming a record.

CPS land+ocn with uncertainties: peaks at 0.2 (not 0.8) and only starts at 1500 not sure how much the record would've been set by if it included the year 600 where land alone hit 0.05.

Briffa et al. : Series begins in 1400, but again peaks at 0.15 (not 0.8). Can't tell from the graph how much of a record but by Briffa et al's original 2001 paper it's by 0.2

Crowly and Lowery (2000): peaks at 0.15(not 0.8), granted it current warming sets the record within the series, by 0.25 higher than 1100.

Jones et al. (1999): peaks at 0.05(not 0.8), current is record by 0.1

Oerlemans (2005) and both borehole sample go back less than 500 years. The boreholes who a smooth curve throughout, with warming starting 500, not 100 years ago. They all peak at 0.2 or lower, again not 0.8.


If I repeat my main point, I think it is reinforced by each of the series above. Instrumental measured warming is completely anomalous compared to the proxy reconstructions. The instrumental record peaks fully 0.6 degrees higher than any of the proxy series. How can anyone look at that and NOT object to the declaration that the last 2k years as shown by proxies proves temperatures have been far cooler and more stable than the last 100 years as shown on the instrumental record. If you instead compare like to like, and compare the last 100 years as projected by each proxy and not the instrumental record, you clearly see that the last 100 years is anything but a radical anomaly.

If you accept Mann's statement that the EIV construction is the most accurate, it can be easily said that the last 100 years, as appears in proxy reconstructions, isn't much of an anomaly at all.


>> ^alcom:

Ah, now I see your point, bcglorf. Of the various methodologies, the 2 instrumental record sets of the last 100 years are the only ones that show the extreme spike of temperature. The composite reconstructions have not yet shown data that is above previously held records in the last 2 millennia, with the exception of the following:
CPS Land with uncertainties
Mann and Jones (2003)
Esperg et al. (2002)
CPS land+ocn with uncertainties
Briffa et al. (2005)
Crowely and Lowery (2000)
Jones et al. (1999)
Oerlemans (2005)
Mann et al. Optimal Borehole (2003)
Huang et al. Borehole (2000)
If you closely follow these lines, you will see that each plot above has indeed set 2000 year-old records in the last 25 years within their own recorded plots, even if not as pronounced as the instrumental record highlighted by the red line. I'm not sure why the EIV lines stop at 1850, but I'm also not a climatologist. The instrumental record has more or less agreed with the EIV record since its existence, including an extending cooling trend midway through this century. The sharp divergence is not fully understood perhaps, but I still think it foolish to ignore the provable, measurable and pronounced upward trend in all calculated measurements.
>> ^bcglorf:
>> ^alcom:
After a cursory reading of Mann's Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia, I can't see how climate change deniers can both read about his methodology AND at the same time gripe about a bias towards measurements that support his argument while ignoring conflicting measurements through other means.
These measurements AGREE. The regression measurement data seems to have a wider variance as you go backwards, but they all trend in the same directions both up and down over the last 2000 years. (I'm looking at the graph here: http://www.pnas.org/content/105/36/13252/F3.expansion.html ) converge and climb at the same incredible rate at the end (the last 25 years or so.) Show me ANY scientific data that reports a measurement of +.8°C over such a short period of time.
As for the polynomial curve objection, the variation in measurements over such a limited data set my not yet reveal the true nature of the curve. And Earth's feedback mechanisms may already be at work to counteract the difference in atmospheric composition. For example, trees will grow faster and more quickly in slightly warmer temperatures with elevated CO2 levels, and naturally counteract the effects of fossil fuel burning by simply converting more of it into O2. There are undoubtedly many, many more factors at play. I'm suggesting perhaps that apparent "straight line" graphing is currently the fastest rate of increase possible based on the feedback systems that are at work.
The point is that it is a losing battle, according to the current trend. At some point, these feedback systems will fail (eg., there will come a point when it is so hot in a region that no type of tree will continue to grow and absorb CO2) and worst still, there are things like the methane in permafrost that will exacerbate the problem further. This isn't like a religious doomsday scenario, the alarm bells are not coming from a loony prophet but from real, measurable evidence that so many people continue to ignore. I'd rather be wrong and relieved that there is no climate crisis and clean energy initiatives end up being a waste of time and money than wrong that there IS in fact cause to make serious changes. The doubt that has driven so much misinformation will at some point be exposed for the stupidity that it truly is.

Look closer at the graph in http://www.pnas.org/content/105/36/13252/F3.expansion.html for me. It is the graph I was talking about. NONE of the reconstructions from proxy sources spike up to 0.8 at the end. The all taper off short of 0.2, the bold red(instrumental) line makes them very hard to see precisely. The closest curve to the red that can be seen is the grey one, which is in fact the other instrumental record they include, and even it stops below 0.6. What is more, the green EIV reconstruction peaks past 0.2 twice over the last 2k years. It also spikes much more quickly around 900 and 1300. Most noteworthy of all is if you read further up in Mann's report, because the big reason for re-releasing this version of his paper is to evaluate the EIV method because statisticians recommended as far more appropriate. Mann notes in his results as well stating that of all the methods, 'we place the greatest confidence in the EIV reconstructions'.
My key point is glaringly obvious when looking at Mann's data, even on the graph. The instrumental record of the last 100 years spikes in an unprecedented fashion. The proxy reconstruction of that same time frame does not. Two different methodologies yielding 2 different results. The speaker in this video points at that and declares it's because of human emissions 100 years ago, but we must look at the fact the methodology changed at that exact point too. The EIV reconstruction was the latest attempt to bridge the gap between the proxy and instrumental records, and although it more closely matches the instrumental, it still doesn't spike 0.8 degrees over the last 100 years, and more interestingly it also shows much greater variation over the last 2k years. Enough variation in fact that if you look at just the green EIV line, the last 100 years isn't particularly note worthy or anomalous.


Man sets car on fire: playing with lighter at gas station

Auger8 says...

Your right fire makes people stupid and panic for no reason most of the time. Funny story I was working as a fry cook at a Buffalo Wild Wings in my home town in Texas when one night one of the guys pulled the fryer out to clean behind it well he yanked on it too hard and it ripped the gas hose off the connection to the wall. I swear to god 6 guys saw fire spurt out of the valve and immediate dropped everything and ran for the hills. I saw that the valve wasn't damaged in anyway so I calmly walked over and turned off the valve the fire went out and the disaster was averted. I couldn't believe how everyone else just panicked instead of taking the logical easiest path to put out the fire. I'm just glad no one pulled the Ansul fire foam system that would have cost the store 20k and we would have spent two days cleaning the inside of the kitchen out.

>> ^kceaton1:

>> ^PlayhousePals:
>> ^Stingray:
Fire extinguishers: Not just ornaments

It appeared that the guy near the end was using the contents of a gas can to extinguish the flames. A fail all around if that were true =oD

I'll assume this is sarcasm that didn't translate well across the Internet--it was water, the stuff you use to wash off your windows with--which is ALSO found RIGHT NEXT TO all the man-made flames and fuel for cars--BTW did you know fuel vapor is pretty nasty--I swear eia is just not enough sometimes.
Fires (and any other such similar event were an emergency is involved) while active creates apparently, an atmospheric anomaly that causes--from what I've noticed in these situations--a strange and sudden affliction that seems to afflict the human nervous system in roughly 95% of the population (some of you may think I'm being TOO generous) it has these noticeable effects: mass stupidity, mass standing comatose adult/children (like deer in headlights), GRABBING THEIR FUCKING cellphone to video it, calling anyone but 911, calling 911 when the situation could have been averted for atleast a minute (sometimes more, MUCH MORE--it can get ridiculous) by them doing a small innocuous measure--but the measure is: beneath them, might get them dirty, they may get close to "the action", they could injury themselves requiring a band-aid; and so, so, so, so, so, many other things that could be listed, but you really can just go to the Failblog and look around and find one thousand examples I don't have here. But this 95% always does the things I listed above and do similar ridiculous actions OTHER THAN stopping the problem! It really is quite amusing and it's also why we've got the term "hero". Hero really should read:
Hero: The person that finally decided to resolve a problem when everyone else decided it was better to journal about it. You get my drift... Yes, there is the "real" hero out there, but they typically have other things that show that they are, like undying loyalty from their followers or getting the Medal of Honor--that type of thing.
This window washing water can be found in large containers, like the one he was carrying to put the fire out, around EVERY single station (typically, sometimes there are even WATER HOSES in the middle). Atleast ONE person was paying attention and put the fire out on both the fuel hose and the gas tank (it looked like he got them out--with a little bucket of water...well used if I might say). He is a minor hero, but he's one of those people that solves an emergency put before a group of people, and decidedly did not take photos first.
Just felt like the man deserved some credit, so I decided to have someone say something good about him (me ); since it's mostly about the idiot eia douche who RAN to find help from the store manager, running RIGHT PAST the fire extinguisher--fucking poetic and on camera. That guy will NEVER live this down...
I'm ALSO assuming he did panic and run into the store to find the clerk, rather than just running away, BUT people HAVE done that... ((Benefit of doubt for this eia, I guess...)

Man sets car on fire: playing with lighter at gas station

kceaton1 says...

>> ^PlayhousePals:

>> ^Stingray:
Fire extinguishers: Not just ornaments

It appeared that the guy near the end was using the contents of a gas can to extinguish the flames. A fail all around if that were true =oD


I'll assume this is sarcasm that didn't translate well across the Internet--it was water, the stuff you use to wash off your windows with--which is ALSO found RIGHT NEXT TO all the man-made flames and fuel for cars--BTW did you know fuel vapor is pretty nasty--I swear eia is just not enough sometimes.

Fires (and any other such similar event were an emergency is involved) while active creates apparently, an atmospheric anomaly that causes--from what I've noticed in these situations--a strange and sudden affliction that seems to afflict the human nervous system in roughly 95% of the population (some of you may think I'm being TOO generous) it has these noticeable effects: mass stupidity, mass standing comatose adult/children (like deer in headlights), GRABBING THEIR FUCKING cellphone to video it, calling anyone but 911, calling 911 when the situation could have been averted for atleast a minute (sometimes more, MUCH MORE--it can get ridiculous) by them doing a small innocuous measure--but the measure is: beneath them, might get them dirty, they may get close to "the action", they could injury themselves requiring a band-aid; and so, so, so, so, so, many other things that could be listed, but you really can just go to the Failblog and look around and find one thousand examples I don't have here. But this 95% always does the things I listed above and do similar ridiculous actions OTHER THAN stopping the problem! It really is quite amusing and it's also why we've got the term "hero". Hero really should read:

Hero: The person that finally decided to resolve a problem when everyone else decided it was better to journal about it. You get my drift... Yes, there is the "real" hero out there, but they typically have other things that show that they are, like undying loyalty from their followers or getting the Medal of Honor--that type of thing.

This window washing water can be found in large containers, like the one he was carrying to put the fire out, around EVERY single station (typically, sometimes there are even WATER HOSES in the middle). Atleast ONE person was paying attention and put the fire out on both the fuel hose and the gas tank (it looked like he got them out--with a little bucket of water...well used if I might say). He is a minor hero, but he's one of those people that solves an emergency put before a group of people, and decidedly did not take photos first.

Just felt like the man deserved some credit, so I decided to have someone say something good about him (me ); since it's mostly about the idiot eia douche who RAN to find help from the store manager, running RIGHT PAST the fire extinguisher--fucking poetic and on camera. That guy will NEVER live this down...

I'm ALSO assuming he did panic and run into the store to find the clerk, rather than just running away, BUT people HAVE done that... ((Benefit of doubt for this eia, I guess...)

Creationism Vs Evolution - American Poll -- TYT

kceaton1 says...

>> ^Crosswords:

>> ^kceaton1:
It goes beyond evolution though, if I'm getting this right. FOR HELL'S SAKE we can use the speed of light to see things FAR, FAR, FAR, FAR, FAR^100 older than 10,000 years!!! It's a fucking joke. If you believe this you are an idiot. Period! = .
It's not just light and carbon dating, we have LOTS of ways to show this place is WAY older...

You're forgetting the Law of God Physics which clearly states God can do anything including making the universe appear much older than it actually is for the purposes of fooling his human creations so he has a way of testing their loyalty when he's not asking them to kill their first born son and saying, JUST KIDDING, at the last minute.


The funny part about this stuff is that they typically say that God "moved the photons" (atleast the semi smarter ones will) and the STILL dumb ones will say that, well light was, you see going a different speed back then so it still all adds up...YOU SEE!!!

BUT THEN!...If you understand relativity correctly like me you understand that you can change the speed of light all the time you want. In fact make it go 1 ft/second! It doesn't MAKE A DAMNED difference in how we will STILL measure the time gone/go/will go by! People never get this at all and it really is the sort of thing were someone mumbles under their breath when they finally understand what I'm saying/going to say: "Is that not amazing!!!". You see mass and energy are the same thing and light is special, it goes the same speed EVERYWHERE, EVERY-TIME, ALL THE TIME--and this thing called "light" are these little tiny particles/waves called photons that as I said before, but not quite as directly, they literally ARE mass and energy, so the relationship between us and light is so fundamental it SHOULD blow your mind. But, so many people went through school and listen to their preachers and have no idea how vitally important that "little" discovery that Einstein made was!!! So, even we at 1 ft/s light speed STILL notice everything moving and everyone we know moving at that same "time" measurement of one second (funny isn't it; but, light is traveling at one second as well, how can this make any sense..!?!?! Well here it comes, it is called relativity and the fact that light is a constant and the other very important fact that our measurement of one second really measures...what?) as we are literally stuck in a cage (this "cage" is called The Universe) that cannot be tampered with. This is all due to that little fact that our perception of time IS relative and our view of one second can be EXTREMELY messed with, but to us it will always seem to be one second--even if 1 Billion years went by. The age of the Universe comes from the SHIFT of energy in the photons present that we can see coming from other places in any direction around us; so God would need to put THAT hologram there nothing else, BUT there is a giant problem in doing this (because due to our friends that want God to actively fuck us over for some reason--the hologram only extends technically 10,000 years out and "hides" the rest--if God put everything the way we see it and it isn't even an illusion--what can I say at that point if God was real I would join the Devil in less than a heart beat to overthrow his LYING, SADIST, and moreover EVIL ass!) If the hologram WAS there then: the hologram, it would need to be different in EVERY single direction you look; every time you move one Planck length (I might be wrong, maybe just the length of a photon) further out into space God would need to fix the energy distribution to make his illusion look correct... YOU HAVE no idea how absurd to the absurd degree this sounds, even GOD would spend his entire existence doing this because the job would require this long to do it: forever (until the UNIVERSE STOPS!). I'm not kidding it would be utterly ridiculous (from Earth his "image" would look right, on Mt. Everest, it would look wrong,; in space it would look wrong--in fact if you have sensitive enough equipment every square foot you took would somehow end up looking incorrect--we're talking about the cosmic background radiation, the little thing that lets us know how old our Universe is and that everything around us is moving away from us...

So that comes to the "putting the photons into place syndrome". For the most part I'm starting to think that these people like to abuse their brain in secret rooms with paint, huffing it until they collapse in a heap. in the morning they slowly scrub the white vinyl paint off their nose and mouth and go start with the blue. The problem with this is God had to of atleast put photons 13.5 Billion years out for this to even work--so in the end it falls so flat on it's face it makes no sense. If he was using a hologram, where is the border? Why do we detect gravitational anomalies when those have been proven to be real locally? It just goes on, and on, and on, and on.

I'd love to hear them explain why space may be full of Dark Matter or better yet why is "nothing" full of something called "The Quantum Foam"--you may have heard of "Vacuum Energy", same thing more or less--look it up it's fascinating and may even be the source OF "The Big Bang". Why can we pull photons (from "nothing") out of the Quantum Foam? According to lots of religious folks you can't create something from nothing, but WHAM, there it is! Sometimes, it just might be a bad idea to hold onto your old per-conceived precepts if they do not allow for change. BTW, the photon coming out of thin air was in a very well-known (now) experiment and is HIGHLY worth looking up; you can find details about it in my Videosift Blog (which is entirely about it).

You could disprove their crap all day. The truth is is that they did bad in their science classes, they just didn't get it and for some archaic left over juvenile resentment, they must have their righteous rite of "The Comeback Minister (or Preacher/Prophet/Father/etc...). So in revenge they are taking the easy way out and saying, "Hah, see I didn't need to learn that stuff from Mr. Scrampton in 12th grade! I'm a Minister now and I can just TELL you what is right, because I know it's right in my gut; especially after five cases of Budweiser!". Now they never tell you the truth. They lie, they tell you it "came" to them, like their a prophet now or something. ...Well if they can be prophets, why can't we? Oh wait, scientists do in fact fill this role and they do a good job at it. they constantly warn us of dangers and things the government should do. But, there are far too many damage control freaks with their own agenda running around and they seem to cling to religion as it satisfies very easily their questions, making it so they don't have to work to find the actual hard ones that exist and that we DO need.

It's not in the Bible that any of these idiots would tell us anything meaningful, nor the Koran, or any other holy book. So I find it strange that so many line up and then sit down and listen to these idiots blather on about the world and how to cure it and what it's ills are. They also as I said do a great deal of "re-education" in THEIR vision satisfying that old juvenile, washed up nothing who couldn't get over the fact that he wasn't good at science off the bat or maybe even when he tried too. This is the bane on America (and I would assume many other places, but America has a lot of this). They are teaching and re-teaching our people ridiculous notions and since they require very little work to understand, just community, people believe it--especially because it's being believed in numbers and that is the important part.

Now this was a longer post than what I wanted it to be and it also went past the scope of my original intentions. BUT, the reason why those statistics exist is due to the nature, the epidemic of how people are being re-taught forcibly (you think like us or you are no longer with us--it can have shocking community affects, especially when it becomes a inter-family problem...I know this EXTREMELY well due to my Mormon upbringing; when I became an atheist I was shunned and cut-off from the community, at first. they slowly let me back in when they realized I was an extremely good person, usually a better person than many of the people in the Church and so my neighbors finally no longer cared--cared what the churches stance was either--who or what I was, they took me for what I was--IT TOOK 20 years to happen!). So many people are started and taught young this is a HUGE problem, I know it's a major one with the Mormon church. You are baptized into the church at eight. You should hear the things they ask you to accept and agree to--they are things that only and adult with experience could properly answer (more like someone that is 25) yet an eight year old surrounded by their family and peers of course can give only ONE answer.

After that, you being to be taught all the incorrect things you could possibly think of. If you are even semi-devout like me (and this goes for many other religions as well) going to public school in Utah, the church has LITERALLY built seminary schools next to every High School and Junior High (and this is true outside of Utah too, as I'm SURE Idaho, Arizona, Colorado, Wyoming, and Nevada--maybe more too, I'm sure they have them locally to attend--I'm sure many of these states have these institutions built right next door or somewhere for kids to attend) you will attend seminary due to the wishes of your parents (my parental situation was beginning to change--and for the better).

Still I attended seminary through grades 7-12 and could have continued in College, but I was agnostic by then...if not basically atheist, just not strong enough to say it. Seminary had it's wonderful parts, but the mis-information was a joke. luckily I was smart, very smart. So I was able to separate the information apart from each other and it allowed me to ask STRONG questions about my one time faith. These questions and their mis-information EASILY killed that religion for eternity, for me--for A LOT of reasons. Many of which, many of you know...easily. It came to ME slow. SO when i talk about helping other people you need to realize what we are up against. facts that do come to us easily usually don't to them and it typically has to do with their past. but, it is HARD to get them to talk about their past openly. For one thing there is no possibility of them being wrong or in danger of it. Somehow we MUST change this.

/Like I said longer, but I hope it was worth it.
/edited for more clarity and a few additions

jonny (Member Profile)

lucky760 says...

Thanks for the info. It seems that sometime after that invocation I must've already patched that hole, as nowadays the *dupeof invocation is be ignored if referencing the same post.

In reply to this comment by jonny:
hey Lucky,

I was dead hunting and found this weird anomaly:
http://videosift.com/video/Darth-Vader-cheats-at-golf-30-sec

Using noredirect lets you load the page and see what caused the problem:
http://videosift.com/video/Darth-Vader-cheats-at-golf-30-sec?noredirect


Apparently KP used the dupeof command on his own vid, but instead of pointing to the original, he pointed it back to itself. In case it's not there already, the dupeof command needs another check to make sure the argument isn't the same url as the one it's being invoked upon. (hope that makes sense \)

And lastly, I don't suppose 11 votes are much to worry about, but the 11 votes on KP's killed vid should have been transferred to punk225's.

lucky760 (Member Profile)

jonny says...

hey Lucky,

I was dead hunting and found this weird anomaly:
http://videosift.com/video/Darth-Vader-cheats-at-golf-30-sec

Using noredirect lets you load the page and see what caused the problem:
http://videosift.com/video/Darth-Vader-cheats-at-golf-30-sec?noredirect

Apparently KP used the dupeof command on his own vid, but instead of pointing to the original, he pointed it back to itself. In case it's not there already, the dupeof command needs another check to make sure the argument isn't the same url as the one it's being invoked upon. (hope that makes sense )

And lastly, I don't suppose 11 votes are much to worry about, but the 11 votes on KP's killed vid should have been transferred to punk225's.

NASA: 130 Years of Global Warming in 30 seconds

bcglorf says...

Why the double standard with climate change?

Surely you don't consider those the same thing?

Toxicity is pretty simple. You run a test feeding creatures cyanide, and they always die if you give them enough.

By comparison, climate change involves interdependent processes that span virtually every branch of known science. I work in an academic environment and have seen what frequently comes out of inter-disciplinary studies. It comes out with stuff like the first link I gave above. Some climate guys who aren't very good with math go ahead and use a misapply a statistical method. That misuse is KNOWN and EXPECTED to give a falsely zero-biased result in the situation the climatologists misapplied. The climatologists then unknowingly went ahead and declared the zero-biased results they received as unique and important evidence that past climate change had little variance from zero. The reality, as evidenced in the article I linked, shows that the truth of the matter is that much better statistical methods exist for the application, and when they were applied by the climatologists, low and behold the historic variation leapt up, so much so as to make the last 100 years no longer look anything like the anomaly they did before.

With climate change there are a million variations and possibilities. The most important question to answer is just how imminent and severe are the effects we are facing. The most straight forward test is the one that Mann et al wowed the IPCC and the world with, showing that the temperature change over the last 100 years was unlike anything in the last 2 thousand. It turns out though that in truth, Mann's original results were an artifact not of human emissions, but of human error in math. Mann's new results show that the earth has been as warm as today multiple times over the last 2k years, and that in that time temperature has previously dropped just as fast as it rose in the last hundred.


As to what to do with unknowns, it still depends on the assumptions you come in with. What percentage do you want to lower emissions by? How much of a difference will that make to future temperature? What is the cost of lowering emissions by that much? What are the costs of dealing the increased temperature instead?

It's not a simply problem with some easy logical answer that is independent of those questions. What's worse, is now those questions not only span scientific fields, but they bleed over into economics and political science as well.

Your assessment before marks the cost of lowering CO2 emissions as moderate and the costs of not lowering them as potential huge. If the cost of lowering CO2 emissions is to be kept moderate, it means not lowering them by very much or not lowering them very quickly. Either way, it means if the effects of CO2 are drastic, we are STILL going to have to adapt significantly in addition to the money spent on reducing emissions. It sounds to me like just a variation on my own suggestion to be honest. A modest investment in battery and nuclear infrastructure, and adapt accordingly with the impacts that doesn't cover or accommodate. The most dire and immediate adaptations are ones that need to be made anyways, so I again don't see the risk as severe as others claim. It's not as though New Orleans was all peachy and good until things got warmer. A city on the coast below sea level, or islands a few feet above sea level could use a lot of dollars spent on adaptation even if we lowered emissions to the point of lowering sea levels by a foot.

NASA: 130 Years of Global Warming in 30 seconds

bcglorf says...

ChasoEngine said:those that have disagree with you. Appeal to authority? Yes, but I wouldn't ask a climate scientist to write software.

I'd ask you to be very specific about what I've said which relevant experts disagree with me on. Go back and look at the very first article I linked to. It is the relevant experts on statistics disagreeing with and correcting the climate scientists that went off and tried to work too far outside their area of expertise and wound making a mistake that seriously altered their results. The short version is the method they applied was well known to be biased for zero if the constraints were not met, which in the situation used was exactly the case. It is EXACTLY why Mann's original hockey stick graph showed very flat temperature anomalies in his reconstruction from 1000-1800AD. You can verify this by using google scholar to look at Mann's own new work following some of the advice of the article I linked and applying a more appropriate method. It's flagged as the EIV line on the graphs, and it shows several times in the last 1k years where the temperature anomaly from the reference date exceeds what we've experienced recently.

Chaos Engine said:Emphasis mine. Do you have a source for that figure? I don't know if you read the link I posted but it would seem to contradict that figure. Besides, even if CO2 is a small contribution, sometimes a small sway can dramatically affect a system.

I'm glad to hear that you believe in reducing our dependence on coal and oil. Frankly, I think it will run out before we stop using it (and it will run out in my lifetime).


I can't find the article I went off originally but here's a different one. It does vary from the range I gave a little but I think it still is consistent with the spirit of everything I've said. It pegs H2O at 71% and CO2 at 29%, the consistent thing I've seen in the multiple journal based estimates I've seen though is that H2O at a minimum carries double the influence of CO2.

We aren't going to run out of coal anytime soon. Even oil we won't run out of soon. What we may run out of soon is cheap oil, but once a certain price point is hit up here in Canada we've got more oil than Saudi Arabia stored up in the tar sands. It's messy, dirty, expensive and a much greater concern to the environment IMHO than CO2 emissions, but it's a big supply. I am hopeful though, as I said before, that in 20 years nobody is going to want gas powered cars anymore because electric will be cheaper, more reliable, more powerful and basically better in every meaningful way.

NASA: 130 Years of Global Warming in 30 seconds

bcglorf says...

>> ^residue:

@bcglorf would you trust someone with a doctorate in geology?
Here are some data:
Air:
http://www.ncdc.noaa.gov/cmb-faq/anomalies.php
Ocean:
http://www.nature.com/nature/journal/v465/n7296/fig_tab/nature09043
_F1.html
(From: Lyman, J.M., Good, S.A., Gouretski, V.V., Ishii, M., Johnson, G.C., Palmer, M.D.,
Smith, D.M., and Willis, J.K., Robust warming of the global upper ocean: Nature,
v. 465, p. 334-337.)
The only real thing debated (or that should be debated) is why it's warming up. we've got 2 basic reasons: it's because of human interaction or it's because of natural processes (hey the earth has been WAY warmer than it is now several times - http://www.scotese.com/climate.htm)
In reference to your statement about the relative contributions of water vapor and CO2, there are 2 things you need to realize. First of all, the residence time of water vapor in the atmosphere is 9 days, the residence time of CO2 among other greenhouse gases can be as much as 100 years with other greenhouse gases (aerosols for example) much longer. Most aerosols were outlawed in the late 70s but graphs of their concentration in the atmosphere show no relative decrease since the cessation of their use. The second point here is that water vapor's place in the atmosphere is natural, greenhouse gas emission is not. Water vapor contributes to the amount of greenhouse effect that we need to survive on the planet (if we didn't have the greenhouse effect at all, earth could not sustain life - too cold). Humans contribute to greenhouse effect by adding in greenhouse gases and warming the planet. To specify the relative contributions of each and say "well water vapor is the biggest culprit! We only release tiny amounts of CO2 relative to water vapor, so it's really not our fault!" is irresponsible.
You might, however, find this interesting:
http://onlin
e.wsj.com/article_email/SB10001424052970204257504577150812451167538-lMyQjAxMTAyMDIwNDEyNDQyWj.html?mod=wsj_share_email
Definitely a different take on the issue at large, but again, the argument here isn't whether or not global warming is happening (it is) but rather what it all means.


Well, you and I seem largely agreed. I commented multiple times that the warming is not in question, but rather why and more importantly what it means to us.

The challenge with accurately modelling the contribution of H2O has nothing to do with our own emissions of H2O. For all reasonable purposes we can, again as you seem to agree, ignore the meager contribution humans make to it. H2O is as you say largely short lived in the atmosphere, but it still makes up the overwhelming majority of the greenhouse effect, despite residing in the atmosphere for a fraction of the time of gases like CO2. Obviously that means that H2O replenishes itself into the atmosphere as rapidly as it dissipates. We know that this rate is driven by temperature. What we don't understand well is how that should play out in our models, or more importantly how it plays out in reality. Just how much confidence can we place on future projections of CO2 changes when we aren't even sure which sign to attribute the feedback effect of water vapor?

NASA: 130 Years of Global Warming in 30 seconds

residue says...

@bcglorf would you trust someone with a doctorate in geology?

Here are some data:

Air:
http://www.ncdc.noaa.gov/cmb-faq/anomalies.php
Ocean:
http://www.nature.com/nature/journal/v465/n7296/fig_tab/nature09043_F1.html
(From: Lyman, J.M., Good, S.A., Gouretski, V.V., Ishii, M., Johnson, G.C., Palmer, M.D.,
Smith, D.M., and Willis, J.K., Robust warming of the global upper ocean: Nature,
v. 465, p. 334-337.)

The only real thing debated (or that should be debated) is why it's warming up. we've got 2 basic reasons: it's because of human interaction or it's because of natural processes (hey the earth has been WAY warmer than it is now several times - http://www.scotese.com/climate.htm)

In reference to your statement about the relative contributions of water vapor and CO2, there are 2 things you need to realize. First of all, the residence time of water vapor in the atmosphere is 9 days, the residence time of CO2 among other greenhouse gases can be as much as 100 years with other greenhouse gases (aerosols for example) much longer. Most aerosols were outlawed in the late 70s but graphs of their concentration in the atmosphere show no relative decrease since the cessation of their use. The second point here is that water vapor's place in the atmosphere is natural, greenhouse gas emission is not. Water vapor contributes to the amount of greenhouse effect that we need to survive on the planet (if we didn't have the greenhouse effect at all, earth could not sustain life - too cold). Humans contribute to greenhouse effect by adding in greenhouse gases and warming the planet. To specify the relative contributions of each and say "well water vapor is the biggest culprit! We only release tiny amounts of CO2 relative to water vapor, so it's really not our fault!" is irresponsible.

You might, however, find this interesting:
http://online.wsj.com/article_email/SB10001424052970204257504577150812451167538-lMyQjAxMTAyMDIwNDEyNDQyWj.html?mod=wsj_share_email

Definitely a different take on the issue at large, but again, the argument here isn't whether or not global warming is happening (it is) but rather what it all means.

A new low for TV science: Malware Fractals in Bones

A new low for TV science: Malware Fractals in Bones



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