"A carbon dioxide observing station located at the South Pole Observatory passed the 400 parts per million (ppm) threshold for the first time in four million years, according to NOAA. The outpost was the last station on Earth that had not reached such levels." http://www.climatecentral.org/news/co2-400-ppm-scientists-mea...
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8( ‎· ☠☠☠☠☠☠
ну что, быть огню ‎· inque
did someone breath on the indicator repeatedly?! ‎· revolutionary in paperback
@hotgiraffe any! anyone :)) ‎· inque
Oops... Never mind. ;) ‎· Ken Morley
Hold your breath, we're trying to fend off the global warming! ‎· 9000
4 million years is not certain. it could be as long as 15 million years ago when there was this much co2 in the atmosphere. - https://www.theguardian.com/environment/planet-oz/2016/may/20... ‎· fax
A world with this much CO²: Lessons from 4 million years ago "Fair Use: Educational (Feb 2014 Lecture : Dr Chris Brierley)" - https://mokum.place/iklimdegisikligi/1023080 ‎· fax ‎· 2