This is an interesting "opposing view" that demonstrates spurious science at it's worst. I would not be surprised if there is a complete absence of "feedback" mechanisms in this analysis and it probably overlooks solar and ocean variables. I'm sure this meeting by the Geological Society has nothing to do with Mexico COP16 just around the corner, they would not want to panic the representatives of those countries taking part with such terrible news, would they?.GR
The Earth will take 100,000 years to recover from global warming if mankind continues to pump greenhouse gases into the atmosphere, geologists have warned.
A conference organised by the Geological Society in London this week will bring together scientists from around the world to look at how the world coped with climate change in the past.
By studying rock sediments from millions of years ago geologists have been able to model how increases in greenhouse gases led to temperature change and extinction of species.
Professor Jim Zachos, of the University of California, said that 55 million years ago volcanic activity caused around 4,500 gigatons of greenhouse gases to be released into the atmosphere over thousands of years. This caused the planet to warm by 6C (10.8F), forcing whole ecosystems, including early mammals, to adapt, migrate or die out in certain areas.
Prof Zachos said that if the world continues to pump out greenhouse gases at the current rate, around 5,000 gigatons of greenhouse gases will be released into the atmosphere over a few hundred years. He said this will cause a more rapid temperature rise that at any other time in history and could cause “mass extinction of species”.
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Updated below with comments by Andre Bijkerk
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