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The work, funded by the National Aeronautics and Space Administration's Astrobiology Institute, the National Science Foundation and the National Research Foundation of South Africa, provides a glimpse of what can happen with long-term climate warming, Ward said.
In this case, there is ample evidence that the world got much warmer over a long period because of continuous volcanic eruptions in an area known as the Siberian Traps. As volcanism warmed the planet, large stores of methane gas frozen on the ocean floor might have been released to trigger runaway greenhouse warming, Ward said. But evidence suggests that species began dying out gradually as the planet warmed until conditions reached a critical threshold beyond which most species could not survive.
Originally posted by Britguy
I also seem to remember a year or so back, the Pentagon issued a study in which they predicted that global climate change posed a much bigger threat than terrorism or war.
With all the crazy weather patterns and extremes we are seeing worldwide, increased seismic activity levels and now global dimming, what are we to do? Well, not a lot that we can do really is there. Seems to be a natural pattern to it, although maybe all the junk we have pumped into the atmosphere has speeded things along a little.
It may well result in drastic depopulation of the planet. Not all in one go but in time with droughts, storms, earthquakes all chipping away at the numbers.
Originally posted by IronDogg
I was wondering what everyone thinks of this? First, is it plausible that this global warming would kill off most of life on the planet, including life in the oceans?
Are the devastating effects of meteors being over-estimated?