
Greta Thunberg @GretaThunberg
New record again. This will of course be broken time and time again as the accumulated concentration of CO2 in the atmosphere will keep increasing. The real worry is the increasing speed. We’re closing in on 420ppm... The considered “safe level” is 350ppm-which we passed in 1987. — PolitiTweet.org
CO2_Earth @CO2_earth
🏆📈🏆 NEW ALL-TIME RECORD HIGHS for #CO2 in HUMAN ERA atmosphere @ Mauna Loa Observatory 🏆 #NOAA daily = 418.12 ppm o… https://t.co/udu85KszBG