350 PPM: "red line for human beings!"

A Letter From Bill McKibben
Dear friends,
350 is the red line for human beings, the most important number on the planet. The most recent science tells us that unless we can reduce the amount of carbon dioxide in the atmosphere to 350 parts per million, we will cause huge and irreversible damage to the earth.
We’re planning an international campaign to unite the world around the number 350, and we need your help. We need to make sure that the solutions the world proposes to climate change are to scale with the level of crisis that this number represents. Everyone on earth, from the smallest village to the cushiest corner office needs to know what 350 means. The movement to spread that number needs to be beautiful, creative, and unstoppable.
What we need most right now are your ideas for how to take the number 350 and drive it home: in art, in music, in political demonstrations, in any other way you can imagine. We will connect actions all around the world and make them add up to more than the sum of their parts–but we don’t have all the ideas and all the inspiration. We need yours.
We could also use your help spreading 350. Can you contact anyone you think might be interested and willing to help–in every country on earth–and send them our way?
Many thanks,
Bill McKibben and the 350.org crew.
P.S.—We’ve raised some money to get this campaign up and running, but to execute a successful international campaign will require more than we’ve got. If you’re in a position to help, please get in touch.