The amount of carbon dioxide (CO2) in the atmosphere today is roughly 390 parts per million (ppm), well above the 275 ppm it was before we started pumping pollution skyward during the Industrial Revolution.
Dear EarthTalk: I read that CO2 in our atmosphere is now more than 300 parts per million. Doesn’t this mean that we’re too late to avoid the worst impacts of climate change? -- Karl Bren, Richmond, VA
The National Oceanic and Atmospheric Association released temperature data for the past six months on Monday. Reports that NOAA’s data shows this to be hottest first half of the year yet in the Granite state.
New Hampshire wasn’t the only state to break records: all told twenty-eight states had their hottest first six months on record, and for another 15 states the temperatures ranked in the all-time top-ten.
