Posts tagged: CO2 levels

Carbon Dioxide Might be At Highest Sustained Levels in Fifteen Million Years

February 20, 2010
According to a UCLA press release issued October 8, 2009, a study in the October 8, 2009 edition of Science suggests that the last time that CO2 levels were as high as today — and were at those levels over sustained periods of time — the earth was 5 to 10 degrees warmer Fahrenheit, there [...]