350.org International Day of Climate Action
350 is the optimum PPM of carbon dioxide in our atmosphere. This Saturday, Oct. 24, 2009, you can learn more about how you can help bring our present 387 PPM of carbon dioxide back down to a safe level.
350 is the optimum PPM of carbon dioxide in our atmosphere. This Saturday, Oct. 24, 2009, you can learn more about how you can help bring our present 387 PPM of carbon dioxide back down to a safe level.
