Bloomberg: The amount of carbon dioxide in the atmosphere averaged more than 400 parts per million throughout April, the first time the planets monthly average has surpassed that threshold.
The data from the Scripps Institution of Oceanography at the University of California, San Diego, shows how world leaders are failing to rein in greenhouse gases that climate scientists say are warming the planet.
Were running out of time, but not solutions, Ed Chen, a spokesman for the Natural Resources Defense...