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Carbon dioxide levels cross 400 ppm threshold, highest in millions of years. | Carbon dioxide levels cross 400 ppm threshold, highest in millions of years. | ||
[https://www.scientificamerican.com/report/400-ppm-and-climate-change/ '''400 PPM: What's Next for a Warming Planet'''] | [https://www.scientificamerican.com/report/400-ppm-and-climate-change/ '''''400 PPM: What's Next for a Warming Planet / Smithsonian'''''] | ||
:Concentrations of greenhouse gases in the atmosphere have reached this level for the first time in millions of years. What does this portend? | :''Concentrations of greenhouse gases in the atmosphere have reached this level for the first time in millions of years. What does this portend?'' | ||
:As the [http://www.greenpolicy360.net/w/Earth_and_Space,_Politics US House Committee on Science disagrees with climate science consensus], NASA’s chief climate scientist, Gavin Schmidt, is not optimistic: “In my opinion, we won’t ever see a month below 400 ppm” | :As the [http://www.greenpolicy360.net/w/Earth_and_Space,_Politics US House Committee on Science disagrees with climate science consensus], NASA’s chief climate scientist, Gavin Schmidt, is not optimistic: “In my opinion, we won’t ever see a month below 400 ppm” |
Revision as of 19:31, 24 February 2017
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Carbon dioxide levels cross 400 ppm threshold, highest in millions of years.
400 PPM: What's Next for a Warming Planet / Smithsonian
- Concentrations of greenhouse gases in the atmosphere have reached this level for the first time in millions of years. What does this portend?
- As the US House Committee on Science disagrees with climate science consensus, NASA’s chief climate scientist, Gavin Schmidt, is not optimistic: “In my opinion, we won’t ever see a month below 400 ppm”
2014/2013 - https://www.theguardian.com/environment/2013/may/10/carbon-dioxide-highest-level-greenhouse-gas
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