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PostPosted: Mon May 14, 2018 9:06 am 
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Joined: Mon Jan 09, 2006 11:05 am
Posts: 4903
Location: Lancashire
Nowadays we equate global warming with catastrophic consequences if our activities continue to feed it. But, what if global warming was once the engine for our very existence?
Researchers have been examining fossil shells in the Shropshire limestone, laid down in a warm sea 510 million years ago. At that time, the sea temperature was around 25C and there were no permanent polar icecaps.
It was the period known as the "Cambrian explosion", when the representatives of all the major animal groups made their appearance. A warmer planet caused a great surge in diversity, creating the conditions for complex life to evolve into fish, reptiles birds and mammals.
It seems ironic that the climatic conditions that might once have been necessary for our emergence, could now work against us.
The research is reported in the journal "Science Advances".

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Last edited by brian livesey on Wed May 16, 2018 12:22 pm, edited 1 time in total.

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PostPosted: Mon May 14, 2018 6:26 pm 
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Joined: Sat Dec 11, 2004 8:18 pm
Posts: 6322
Location: Manchester
Brian; at some time in the very distant future long after humans have disappeared, some bright newcomers might discover that us humans died out. The cause being some unknown catastrophe after the human population expanded too much because of some weird global warming.
Best wishes from Cliff


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