photo: Dominic Alves via flickr
Taking a look back to past global climate changes, researchers led by Timothy Herbert of Brown University have determined that for at least the past 2.7 million years tropical temperatures have "changed in lockstep" with the cyclical spread and retreat of ice sheets, and that CO2 has been the main factor dictating global climate patterns. Article continues: CO2 Linked To Ice Ages & Past Global Climate Changes
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