Quote:
Originally Posted by Danzig
http://www.slate.com/blogs/trending/...cene_era_.html
Antarctica has yielded implications about global warming that are chilling.
Drilling deep into the seabed just off Earth's southernmost continent, researchers have discovered remnants of a near-tropical rainforest that existed 50 million years ago.
During this period, known as the early Eocene era, the Earth experienced dramatic greenhouse conditions with high atmospheric carbon dioxide counts and palm trees growing around the South Pole
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How could this have happened before without the aid of man?
Climate is cyclical?