2007 - Bill McKibben begins to organize against climate change

O

n this date in 2007, Bill McKibben begins to organize against climate change with a walk across Vermont, his home state.

Begun as "Step It Up," 350.org has evolved from climate scientists' finding that atmospheric concentration of carbon dioxide - CO2 - above 350 parts per million is unsafe for life on Earth.

"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 [current levels] to at most 350 ppm."

That's Dr. James Hansen talking, former head of the Goddard Institute for Space Studies, and one of the world's most respected climatologists. When he says that climate change is incompatible with human civilization, people ought to sit up and take notice.

Read the People’s World story - “Today in environmental history McKibben steps it up with 350.org.”