““Bill McKibben named his climate change advocacy group 350.org, because 350 ppm of atmospheric carbon dioxide is what Dr. James Hansen, former head of the Goddard Institute for Space Studies and one of the most respected climatologists in the world, says is the maximum level to “preserve a planet similar to that on which civilization developed and to which life on Earth is adapted.” Tragically, we have now exceeded 400 ppm.””
![“As the longest serving Independent in the history of the United States Congress, as somebody who came into office by defeating an incumbent Democratic mayor in Burlington, Vermont, I know something about third party politics. And I respect Jill [Stein].” quote by Bernie Sanders](https://sms4smile.com/quotes/img-quotes/94c/bernie-sanders-233_congress_as-the-longest-serving-independent-in-th_10777.jpg)
