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Carbon dioxide levels are the highest in 3 million years

Posted Oct 31, 2017 2017-10-31T00:00:00+08:00 by PipisCrew

http://bgr.com/2017/10/30/co2-levels-global-warming-climate-change-highest-in-millions-of-years/

origin - http://www.pipiscrew.com/?p=10837 carbon-dioxide-levels-are-the-highest-in-3-million-years

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