Lisa Hymas is senior editor and cofounder of Grist.org, the nation's leading online environmental news organization. She writes and blogs about the green side of being childfree as well as other environmental issues. She won a 2010 Population Institute Global Media Award for her writing on childfree living and population. She started her career as a writer and editor at Greenwire, a Washington, D.C.-based online environmental news service. She has also worked at Island Press, an environmental book publisher, and Tomorrow, a sustainable business magazine. She lives in Seattle.