posted by Annoynymous | 3:33 PM
Your last two posts kind of contradict one another.Volcanos and earthquakes and fires and anything that spews ash into the atmosphere absolutely have global cooling effects on the climate.They can reasonably account for all the vast historical changes of the last million years, in fact. High volcanic activity and global Ice Ages correlate. The difference is that, all things being equal, industrial production has coincided with a warming trend that has a far greater probability of being manmade. Indeed, Pinatubo erupted in 1991 and dropped climate a tad, but failed to stall the warming trend.
so why is it that we're approaching the high temperature in both the 110k year cycle (http://en.wikipedia.org/wiki/Image:Co2-temperature-plot.png) and in the 700 yr cycle (http://photos1.blogger.com/blogger/7149/2767/1600/Spotlight_281_Page_2.jpg), not forgetting the 22k year cycle between ice ages. I think the point is that Gore is a hysteria monger, there's more going on than we have a clue about, all signs point to the Earth warming on all short and long term time scales, and that the sky isn't falling. BTW, note that 110k years ago it was 1.5 degrees C (almost 3 degrees F) warmer, and 330k years ago it was about 1.25 degrees C warmer. Also check out this link http://www.geo.arizona.edu/palynology/geos462/21climastro.html regarding orbital varience and climate change. Now, with all this, and though I agree we should limit pollution (everybody's pollution including developing nations--which is why Kyoto is terrible), can you say with certainty, even probability that global warming is happening primarily because of us? What really scares me are the scientists who are devising plan to deliberately cool the atmosphere. I feel like a plan to influence global warming/cooling directly and specifically could really screw things up--road to Hell being paved with good intentions and all.
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