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● [http://www.climatecentral.org/news/antarctica-co2-400-ppm-million-years-20451 '''400 PPM, Science Facts and Global Risks'''] | ● [http://www.climatecentral.org/news/antarctica-co2-400-ppm-million-years-20451 '''400 PPM, Science Facts and Global Risks'''] | ||
Revision as of 16:37, 9 April 2017
<addthis /> ● 400 PPM, Science Facts and Global Risks
No Going Back
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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