On this logic, given the obvious predominance of such negative feedback mechanisms controlling climate change it’s highly unlikely that massive shifts such as the so-called “ice ages” could have occurred.
To: M. Dodge Thomas
Actually, negative feedback could allow for large oscillations, but prevent run-away temperatures that would be completely detrimental to life, i.e. Completely frozen planet (which was predicted by some climate models in the 70's - I seem to remember Asimov writing about it in one of his non-fiction books) or Venus-type temperatures.
The question is since the Earth seems to be in the sweet spot that does not seem to run to either extreme, is this by design or chance?
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson