There are currently 387ppm of CO2 in the atmosphere. According to James Hansen of NASA’s Goddard Institute that’s already too much. Hansen’s research shows, based on models and paleoclimatological data, that any amount over 350ppm runs the danger of pushing us past tipping points beyond which catastrophic results will be impossible to avoid.
Bill McKibben and other anti-Climaticide activists have harkened to Hansen’s warning and have begun a campaign to guarantee that every person on the planet knows the significance of 350.
Why not check out the 350.org web site and see how you can get involved? We’re in a race to see if we can get to the critical mass where we can make real change happen before we get to the tipping points.