Check out my first post on Desmog.ca

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This is What 400ppm Looks Like: CO2 Levels Highest in More Than 800,000 Years.

On Friday, scientists at Scripps Institution of Oceanography, at the University of California, San Diego, recorded CO2 levels higher than the world has seen in over 800,000 years.

From atop the Mauna Loa volcano on the big island of Hawaii—the oldest continuous carbon dioxide measurement station in the world—a reading of just over 400 parts per million (ppm) was recorded this Friday. A similar measurement was made at the National Ocean and Atmospheric Administration (NOAA) station, also in Hawaii. This reading pushes us well past the 350 ppm target scientists say we should stay below if a global temperature rise of 2 degrees Celsius is to be avoided.

Check out my first post on Desmog: “This is What 400ppm Looks Like: CO2 Levels Highest in More Than 800,000 Years.” http://ow.ly/l6tPi

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