350 is the safe limit to avoid runaway climate change
June 28, 2008 by Eugene
Filed under Climate Change, Features
350 ppm (parts per million) is the safe upper limit for the amount of carbon dioxide in the atmosphere that we need to achieve to prevent runaway climate change. The world’s leading climate scientist, James Hansen, says: “If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, paleoclimate evidence and ongoing climate change suggest that CO2 will need to be reduced from its current 385 ppm to at most 350 ppm.” Spread the number.














Hi Eugene and Asia is Green!
Thanks for the great shout out to the 350.org campaign. I am one of the co-coordinators of the campaign and am currently traveling in Japan and China to connect with youth organizers and NGO’s working on climate change. Together, we’re building a global movement to take us back to 350.
I’m in Tokyo now and will be in Beijing, Shanghai, and Hong Kong during July. If anyone wants to get in touch and help build the 350 movement in Asia, send me an email and maybe we can meet up: jamie@350.org.
Thanks!
J