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Are humans contributing only 3% of CO2 in the atmosphere?

bcglorf says...

TLDW version:

Of the CO2 pumped in to our atmosphere every year, human emissions only make up 3-4% of the total. Natural CO2 emissions globally DO greatly dwarf our burning of fossil fuels and other activities. This is an entirely undisputed fact, and is universally accepted and agreed upon.

As for global greenhouse effect, the CO2 remaining in the atmosphere contributes between 10-30% of the energy being trapped depending on how you count it. This is again an entirely undisputed fact, universally accepted and agreed upon.

Yes, CO2 is a small(ish) part of the global greenhouse effect, and yes, humans only add an extra 3% per year to existing natural emissions. That 3% can add up if it doesn't leave the atmosphere and builds up year over year. We have measured for it, and see that is in fact happening. We have measured the resulting warming and energy inputs and it is in fact warming.

If people want to observe those fractions of fractions stretch out error bars on analysis and projections, that's more fair. Your error bars get magnified a couple times along the way. Most of the time good scientists take that into account, although some have certainly been much less rigorous when speaking publicly than when publishing(Yes, I'm looking at you James Hansen).

Whoo! The World Will Stay Hospitable For Human Life!

Real Time - Dr. Michael Mann on Climate Change

Asmo says...

While I am 100% on board with the "carbon bad, not carbon good, global warming = real, made by man and a real prick of a problem" message, the biggest fault made by people like Maher etc in prosecuting their case to the "sceptics" is reliance on bad information.

For example, the sums have been done on solar and wind, and generally speaking, wind is only borderline viable for supporting a society (and that's only if you don't add the cost of some form of buffering/storage). Solar, particularly home roof grade, is fucking awful, and essentially a waste of time compared to tracking mass production arrays. In terms of energy to build/install/maintain/remove, it barely pays for itself. Solar thermal is also more efficient (helios arrays etc), but the two best bang for buck technologies for producing massive amounts of power at a very low carbon cost are nuclear and hydro.

And they are two technologies that people seem to want to get rid of. Germany shuttered it's nuke capability after Fukushima (and added more coal capacity). Italy's solar market has fallen in a heap, France is almost carbon neutral only because it is predominately nuke powered. One of the original climate change warriors, Dr. James Hansen of Nasa, is fully supportive of nuclear power, and get's constantly lambasted by green types because they do not want nuclear power to play a part.

Refutation of solid science and willful ignorance is not solely the province of people who deny climate change, and it's no less deplorable.

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Harassing your own MOTHER?

newtboy (Member Profile)

Trancecoach says...

While the climate is complicated, the climate science is not. The U.S. winter temperatures plummeted from 1950 to 1979. The scientists reacted to this with a "global cooling" scare, as reported by Science News in 1975 (PDF). As such, NASA warned of a new ice age by the year 2020. Then, after 1979, temperatures got much warmer, so NASA's James Hansen began the global warming scare (PDF).

But after the year 2000, temperatures began to plummet again. So NASA and NOAA responded with the only sensible solution. They altered the data to eliminate the earlier warmth and the current cooling.

But that wasn't sufficient for keeping up with the cooling temperatures, so they renamed "global warming" as "climate change."

It is for these and other reasons that climate science undercuts its efforts with fraudulence.

lurgee (Member Profile)

To Catch a Predator - Hot Teacher

jwray says...

I think the point of the video is to mock the double standard. Reversing the sexes changed the perception because there's no longer a "damsel in distress" vibe. People are more apt to acknowledge the sexual autonomy of men as agents acting of their own free will, and from that perspective Chris Hansen becomes ridiculous. Anglophone countries' ages of consent of 16-18 are higher than most of continental Europe's 14, and I suspect it's something to do with Victorian fear and loathing of sex. Certainly law almost never gets made on the basis of empirical data such as psychology research. Age of consent can be justified as a tradeoff between the quantity of foolish people below the age who will do things they later regret, and the quantity of unfoolish people below the age whose freedom will be harmed. Government should be circumspect about protecting people from their own free will.

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Honest Trailers - Iron Man 3

VoodooV says...

What I don't get is how Hollywood has apparently ignored the lesson of Spiderman 3 where they simply tried to do WAY too much in one movie and unsuccessfully tried to pull off 3 villain plots.

Iron Man 3 was just all over the place, The extremis plot, the Mandarin plot, Tony's little mental breakdown thing, the kid sidekick thing. It was so unfocused. Instead of doing one story well, they tried to pull of 3-4 stories poorly.

Maya Hansen was pretty crucial to the comic book Extremis story, but in the movie she was completely useless and was nothing but another woman for Tony to flirt with.

EvilDeathBee said:

I equally liked and disliked the sudden character change of The Mandarin. I'm not at all invested in the Iron Man comics so I didn't care on that front, it was a cool little twist and the goofy character was fun.
However, Kingsley also did such an amazingly intimidating and fearful character I would love to have seen how it would've played out without putting in the twist.

Overall Iron Man 3 sucked, too much unnecessary plot complexity. Sometimes (more often than not, actually) a simple, straight forward plot works best for these sorts of films. Here is the bad guy, here is the good guy, have at it! I'm disappointed and surprised, I had much more faith in Shane Black.

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The Veronica Mars Movie Project

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siftbot says...

Tags for this video have been changed from 'push pin, banana, art, phil hansen, tattoo a banana' to 'push pin, banana, art, phil hansen, tattoo a banana, PITW, Phil in the what' - edited by Trancecoach

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