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And the straightforward observation from my point below is that if the reconstructions from the last 2k years show that similar climate change and extremes have occurred naturally then maybe it isn't time to panic just yet.

It's not even that I am 'doubting' the proxy measures. I am directly observing that the proxy measures DO NOT register the last 100 years as particularly unusual or abnormal. In fact, the more accurate and improved the proxy reconstructions have become, the more normal the last 100 years appears in those reconstructions.

The proxy reconstructions are as much 0.6 degrees cooler than instrumental records at the exact same point in time. I am objecting to a laymen like in the video coming along and saying the instrumental record's warmth is unprecedented over the last 2k years. Sure the proxy records don't show temperatures as high as the instrumental record in the last 2k years. The proxy records don't even show temperatures as high as the instrumental record in the last 10. The proxy records fail to recreate the temperatures observed in the instrumental record.

Is that making sense or clear what I am talking to?


In reply to this comment by Peroxide:
hmmm, I was aware that we only have thermometric readings of temperature for the last 100-150+ years. So basically you are doubting the ability of tree rings, pollen identification in sediments, and other methods of temperature reconstruction.

If I may reiterate my point, which I made rudely in the video post, I would say that you might be interested to know that if you go back further than 2k years, as in, more than 10k, there are temperature changes that were even greater than 1 degree, however, homo-sapiens was not around to endure them. Irregardless of previous temperature deviation, science tells us that our "freeing-up" of carbon dioxide, and creation of methane, are the culprits of the current temperature increase.

How does our ability to measure the last 2k years change that? or change the fact that we are heading for a 6 degree increase (which would not be uniform, for instance the poles have already warmed more than by 0.8 degrees, while the tropics may have warmed by less than 0.8 degrees)?

I fail to see that you have any point outside of that our estimations going back past 150+ years may be slightly off.

"It is obviously true that past climate change was caused by natural forcings. However, to argue that this means we can’t cause climate change is like arguing that humans can’t start bushfires because in the past they’ve happened naturally. Greenhouse gas increases have caused climate change many times in Earth’s history, and we are now adding greenhouse gases to the atmosphere at a increasingly rapid rate." -s.s.