Contributing writer Wen Stephenson is an independent journalist and climate activist, at work on a book about the climate-justice movement. He helped launch the grassroots network 350 Massachusetts and serves on the board of Better Future Project, a nonprofit in Cambridge, Mass. A former editor at The Atlantic, where he co-created and edited TheAtlantic.com, and at The Boston Globe, where he edited the Sunday "Ideas" section, he was most recently the senior producer of NPR's On Point. He has written about climate, culture and politics for The Boston Phoenix, Grist, Slate, The New York Times, and the Globe. On Twitter: @wenstephenson.