The Coop's not the only group of green-minded folks in Brooklyn. Check out these two websites from other local, environmentally-focused groups:
Brooklyn Green Team (http://brooklyngreenteam.blogspot.com/)
As their website states, "Brooklyn Green Team is a grassroots organization devoted to reducing the environmental impact of ourselves and others." The Green Team sponsors eco-activism (like their recent 5-minute shower challenge) and other community events, and their blog features environmental news and tips from Brooklyn and beyond.
Green Brooklyn (http://greenbrooklyn.com/)
Green Brooklyn is a blog that posts a wide variety of news and info of an ecological bent. The website also features links to local resources for environmentally-friendly shopping, eating, and living. It's even hosted by an internet provider running on 100% wind power!