Regina McCarthy (born May 3, 1954) is an American environmental health and air quality expert serving as the first White House National Climate Advisor under U.S. President Joe Biden.

Regina McCarthy (born May 3, 1954) is an American environmental health and air quality expert serving as the first White House National Climate Advisor under U.S. President Joe Biden. She served as the 13th Administrator of the Environmental Protection Agency (EPA) from 2013 to 2017.

On March 4, 2013, President Barack Obama nominated McCarthy to replace Lisa Jackson as head of the EPA.[3] Confirmation hearings started April 11, 2013.[4] On July 18, 2013, she was confirmed after a record 136-day confirmation fight, becoming the face of Obama’s global warming and climate change initiative.