2014 Earth’s warmest year; 2015 begins with CO2 above 400 PPM

 

NOAA: 2014 was Earth’s warmest year on record

December 2014 record warm; Global oceans also record warm for 2014

January 16, 2015

The globally averaged temperature over land and ocean surfaces for 2014 was the highest among all years since record keeping began in 1880, according to NOAA scientists. The December combined global land and ocean average surface temperature was also the highest on record.
This summary from NOAA’s National Climatic Data Center is part of the suite of climate services NOAA provides to government, business, academia and the public to support informed decision-making….

 

 

Carbon dioxide levels measured atop Hawaii’s Mauna Loa from early December 2014 to early January 2015, when they jumped above 400 ppm. Credit: Scripps Institution of Oceanography

2015 Begins With CO2 Above 400 PPM Mark

Published: January 12th, 2015 By Andrea Thompson

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, experts say.

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. “…. The 400 ppm mark was first passed on May 9, 2013. In 2014, it happened two months earlier, in March. The average CO2 concentrations for March, April and June 2014 were all above 400 ppm, the first time that has been recorded. The peak CO2 measurement of 2014 was just shy of 402 ppm in May….

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