Global Warming

Another Record CO2

Levels of carbon dioxide in Earth's atmosphere reached another record high last month, scientists from the National Oceanic and Atmospheric Administration and the Scripps Institution of Oceanography announced Monday.The carbon dioxide (CO2) level measured in May in Hawaii averaged 424 parts per million, NOAA said. That’s 3 parts per million more than last year’s May average and 51% higher than pre-industrial levels of 280 ppm. It also represents the fourth-largest annual increase on record.