A major milestone.

For the first time, NOAA’s Mauna Loa observatory recorded an average daily CO2 concentration above 400 parts per million. Globally, we’re not yet at annual averages above 400, but this is indeed an important milestone. We’ve created 400.350.org to reflect on what this means, and talk about what we’re doing to cool the planet.

Please take a moment to read and share.

 

350 Global Map

Check out local groups around the world on the 350 global map!
Launch the Map