April 22 marks the 51st anniversary of Earth Day, the annual day of action and reflection around the world with a singular focus: Save the Earth. Originally the brainstorm of Wisconsin Senator Gaylord Nelson, and primarily intended to put the environment on the national agenda, Earth Day has since evolved to include the participation of more than 1 billion people in over 190 countries. In addition, it has influenced legislation such as the Clean Air Act, the Water Quality Improvement Act, and the Endangered Species Act, as well as leading to the establishment of the United States Environmental Protection Agency.
Soon after his inauguration earlier this year President Biden announced that the U.S. would re-enter the Paris Climate Accord. He has since shown even more support for climate science and action by creating a new position, the Special Presidential Envoy for Climate, which will have a seat on the National Security Council and will be filled by John Kerry, a long-time environmental advocate.