10 Wonderfully Unique Beaches
10 Wonderfully Unique Beaches, in pictures.
CO2 at NOAA’s Mauna Loa Observatory Reaches New Milestone: Tops 400 Parts Per Million
Once emitted, CO2 added to the atmosphere and oceans remains for thousands of years. Thus, climate changes forced by CO2 depend primarily on cumulative emissions, making it progressively more and more difficult to avoid further substantial climate change.