Thursday, January 23, 2014

The Sun WILL eventually Bake the Earth Lifeless

Yes, we have all heard of the scenario where the sun brightens, or even when the sun become a red giant, in either case Earth becomes a cinder of its former self.   This little gem of good news has been postulated as early as 600 million years, based on how fast the sun is brightening, about 1% every 100 million years or so.

But before you invite yourself to the world's biggest fish fry, here is something to consider.  It would seem that the model above was based on incomplete or erroneous information.  The conclusions were based on how  evaporating water and heat would be trapped in the earth's atmosphere, quickly raising the temperature and making life on the surface hellish. 

It would seem though that the model  wasn't complicated enough.  , Recent studies however have  added in cloud coverage and regional temperature differences.  Some studies now estimate that the inevitable will occur closer to 1 billion to 1.5 billion years from now.  It will still happen, but much later than previous studies had suggested. 

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