"2016 will be the year that carbon dioxide officially passed the symbolic 400 ppm mark"

CO2 has officially passed the 400 particles per million mark

#Environment

Fri, Sep 30th, 2016 11:00 by capnasty NEWS

Since it was an issue of when rather than if, Climate Central brings to attention the depressing news that as of September 2016, carbon dioxide has reached 400 ppm, "never to return below it in our lifetimes." Above, a video by NASA Goddard, showing CO2 movement across the planet.

“Is it possible that October 2016 will yield a lower monthly value than September and dip below 400 ppm? Almost impossible,” Ralph Keeling, the scientist who runs the Scripps Institute for Oceanography’s carbon dioxide monitoring program, wrote in a blog post. “Brief excursions toward lower values are still possible, but it already seems safe to conclude that we won’t be seeing a monthly value below 400 ppm this year – or ever again for the indefinite future.”

We may get a day or two reprieve in the next month, similar to August when Tropical Storm Madeline blew by Hawaii and knocked carbon dioxide below 400 ppm for a day. But otherwise, we’re living in a 400 ppm world. Even if the world stopped emitting carbon dioxide tomorrow, what has already put in the atmosphere will linger for many decades to come.

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