https://www.usatoday.com/story/news/world/2019/05/13/climate-change-co-2-levels-hit-415-parts-per-million-human-first/1186417001

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CLOSE. The past five years have been the warmest years since records began in the late 1800s, according to NASA and NOAA. CONNECT LINKEDIN EMAIL MORE. Carbon dioxide levels in Earth's atmosphere hit a stunning milestone over the weekend. Data from the Mauna Loa Observatory in Hawaii showed that carbon dioxide levels surpassed 415 parts per million Friday. "We don't know a planet like this," Eric Holthaus, a meteorologist and writer at Grist, an online environmental magazine, posted on Twitter. Carbon dioxide (CO2) concentrations have skyrocketed far higher than any levels in more than 800,000 years, according to data from the Scripps Institution of Oceanography at the University of Californ... Full story

13 May

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