Cheri Chastain has been sustainability manager for Sierra Nevada Brewing Co. for more than 10 years. Chastain is responsible for educating employees on environmental issues and programs, maintaining and developing policies and projects related to renewable energy and energy efficiency, managing zero waste, implementing alternative fuels, and actively working on water conservation and reuse. She also works outside Sierra Nevada’s walls on policy and advocacy issues related to sustainability, representing the company in several industry working groups. Chastain is currently a member of the City of Chico’s (Calif.) Sustainability Task Force, co-chair of the Brewer’s Association Sustainability Subcommittee and a U.S. Zero Waste Business Council board member. She has a B.A. and an M.A. in environmental geography.