Earth’s atmosphere just crossed another troubling climate change threshold – The Washington Post

www.washingtonpost.com/news/energy-environment/wp/2018/05/03/earths-atmosphere-just-crossed-another-troubling-climate-change-threshold/?noredirect=on&utm_term=.73854b529c61
Democracy Dies in Darkness
Energy and Environment Earth’s atmosphere just crossed another troubling climate change threshold By Chris Mooney May 3
Recent CO2 measurements at Mauna Loa Observatory in Hawaii. (Scripps Institution of Oceanography) For the first time since humans have been monitoring, atmospheric concentrations of carbon dioxide have exceeded 410 parts per million averaged across an entire month, a threshold that pushes the planet ever closer to warming beyond levels that scientists and the international community have deemed “safe.”

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