National Academy of Sciences / League of Conservation Voters / Congress / U.S. House of Representatives / Physicians for Social Responsibility / Environmental Defense Fund / World Health Organization / Environmental Protection Agency / Environmental Protection Agency’s Science Advisory Board / Natural Resources Defense Council / International Agency for Research / /
Natural Resources Defense Council * Environmental Defense Fund * Clean Water Action * Physicians for Social Responsibility * Earthjustice * League of Conservation Voters April 10, 2013 The Honorable Lamar Smith