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.

NOAA Mauna Loa CO2 Data PDF Print E-mail moved to in November 2015. Go to the's monthly CO2 page to get the latest NOAA-ESRL readings and dataset for CO2 at Mauna Loa.



CO2 Acceleration  |

Mauna Loa Science and Wonder  |

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