For most Americans, Earth Day symbolizes the need to protect the natural environment – specifically clean air, clean water, and pristine rivers and forests. In the years following the first Earth Day in 1970, some of our nation’s most important environmental laws were adopted, including the Clean Water Act, the Clean Air Act, and the Toxic Substances Control Act. Actors like Meryl Streep also caught the attention of America’s mothers by bringing attention to pesticides in the food that we feed our children every day.