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ððð 412.63 ppm #CO2 on April 26, 2017 | First day in human history with a reading >412 at Mauna Loa! #NOAA data via https://t.co/PTTkLiy4Xs pic.twitter.com/4Wsn1fssSNâ CO2 earth (@CO2_earth) 2017å¹´4æ27æ¥ 2017å¹´4æ26æ¥ã«412.63ppmãè¨é²ã4æ18â¦
410.28 ppm #CO2. April 18, 2017 is the first day in human history when a daily reading exceeds 410 at Mauna Loa! https://t.co/ueY59ABWJIâ CO2 earth (@CO2_earth) 2017å¹´4æ20æ¥ 2017å¹´4æ18æ¥ã«410.28ppmãè¨é²ã400ppmãåãã¦è¨é²ããã®ã¯2013â¦
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