CO2 Now


What the world needs to watch

Global warming is mainly the result of CO2 levels rising in the Earth’s atmosphere. Both atmospheric CO2 and climate change are accelerating. Climate scientists say we have years, not decades, to stabilize CO2 and other greenhouse gases.

To help the world succeed, makes it easy to see the most current CO2 level and what it means. So, use this site and keep an eye on CO2.  Invite others to do the same. Then we can do more to send CO2 in the right direction.

Watch CO2 now and know the score on global warming, practically in real time.

Scripps CO2 Data - Mauna Loa Observatory PDF Print E-mail

Scripps Institution of Oceanograph

Started in March 1958, the Scripps Mauna Loa dataset is the longest-runing, high-precision instrument record for atmospheric CO2. 

About the Scripps CO2 Program

The Scripps CO2 program was initiated in 1956 by Charles David Keeling who directed the program until he died in 2005.  The program is now operated by  Ralph F. Keeling who also runs the Scripps O2 Program that measures atmospheric oxygen and argon.   Both programs are based at the Scripps Institution of Oceanography in San Diego (La Jolla) California. moved to in November 2015. Go to the's monthly CO2 page to get the latest Scrips readings and dataset for CO2 at Mauna Loa.



Scripps Program

Scripps CO2 Program Home Page | Scripps CO2 Program

Scripps CO2 Program:      Scripps Source CO2 Data (CSV)  


More from the Scripps CO2 Program

Keeling Curve Website  |  See the most recent daily average for atmospheric CO2

Keeling Curve Twitter  |  Daily averages for atmospheric CO2 (recent and historical)




NOAA CO2 Data |


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