CO2 levels at highest for 3 million years: The last time CO2 levels were this high, Greenland was mostly green, sea levels were up to 20 meters higher and trees grew on Antarctica

CO2 levels at highest for 3 million years: The last time CO2 levels were this high, Greenland was mostly green, sea levels were up to 20 meters higher and trees grew on Antarctica - NewsGossipBull.BlogSpot.com - Latest News, Gossip & Bullshit