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390.09ppm

Atmospheric CO2 for July 2010

Preliminary data released August 6, 2010 (Mauna Loa Observatory NOAA-ESRL)

CO2 Data Set:	Original data file created by NOAA on Friday August 6, 2010 (17:36:06)

Measuring Location:	Mauna Loa Observatory, Hawaii


Data Source:	Earth Systems Research Laboratory (ESRL) / National Oceanic and Atmospheric Administration (NOAA)


Why is CO2 significant?	Carbon dioxide (CO2) is the chief greenhouse gas that results from human activities and causes global warming and climate change. To see whether enough is being done at the moment to solve these global problems, there is no single indicator as complete and current as the monthly updates for atmospheric CO2 from the Mauna Loa Observatory.


What is the current trend?	The concentrations of CO2 in the atmosphere are increasing at an accelerating rate from decade to decade. accelerating from decade to decade. The latest atmospheric CO2 data is consistent with a continuation of this long-standing trend.


What level is safe?	The upper safety limit for atmospheric CO2 is 350 parts per million (ppm). Atmospheric CO2 levels have stayed higher than 350 ppm since early 1988.

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