*In 1970, biologist at [[Washington University]] Barry Commoner said “We are in an environmental crisis which threatens the survival of this nation, and of the world as a suitable place of human habitation.”<ref>https://www.newspapers.com/clip/111505264/environmental-crisis/</ref> | *In 1970, biologist at [[Washington University]] Barry Commoner said “We are in an environmental crisis which threatens the survival of this nation, and of the world as a suitable place of human habitation.”<ref>https://www.newspapers.com/clip/111505264/environmental-crisis/</ref> |