Getty Images |

Still Spewing...
A chimney stack belches smoke into the air from a coal power station in England. The average level of CO2 in the atmosphere increased by 2.4 parts per million in 2007, bringing the total to nearly 385 parts per million, according to a new report from the National Oceanic and Atmospheric Administration. Pre-industrial levels were around 280 parts per million.

« back to article