The Corps Environment is an online quarterly news magazine published by the U.S. Army Corps of Engineers and is intended to provide information about USACE and Army environmental initiatives, policies and technologies. This edition highlights protecting and preserving the environment, in support of Environmental Operating Principle #4. The content within this issue showcases the extraordinary environmental stewardship efforts across the Army. Content includes: Assistant Secretary of the Army for Installations, Energy and Environment Alex Beehler's Army Earth Day message; highlights the five installations and three teams recognized as winners in the 2020 Secretary of the Army Environmental Awards program; and celebrates some of our environmental heroes, who have spent their careers championing environmental stewardship across different disciplines, including scientific research and geology.