Bill Roberts has over 30 years of experience in politics, advocacy, and philanthropy. Bill has held leadership positions at Atlantic Philanthropies (director of U.S. advocacy) and the Beldon Fund (president). In advocacy and policy, Bill held senior positions on the U.S. House Energy and Commerce Committee and at the Environmental Defense Fund. Bill also has a range of political experience, including service as board chair of the League of Conservation Voters from 1999 to 2011.