The Sierra Club's members and supporters are more than 1.3 million of your friends and neighbors. Inspired by nature, we work together to protect our communities and the planet. The Club is America's oldest, largest and most influential grassroots environmental organization. There are over 19,000 Sierra Club members active in the metropolitan Washington area - join their efforts to promote smart energy solutions, save America's wild legacy, and assure safer and healthy communitues for our children.