Happy New Year: CO2 Has Already Hit Alarming Milestone





Experts say that the new year has only just begun, but we've already recorded our first days with average carbon dioxide levels above 400 parts per million, potentially leading to many months in a row above this threshold. The Scripps Institution of Oceanography records of atmospheric carbon dioxide levels show that Jan. 1 was the first day of the new year above that concentration, followed by Jan. 3 and Jan. 7. Daily averages have continued at this level or higher through Jan. 9, though they could continue to dance up and down around that mark due to day-to-day variations caused by weather systems. But even with those fluctuations, 2015 will likely see many months above 400 ppm, possibly starting with the very first month of the year. http://on.mash.to/1BkZpwa http://bit.ly/1fJ5yqZ

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