Al Gore Endorses Biden Presidency on Earth Day but Is Criticized by Michael Moore

Climate activist Al Gore makes a speech during the COP24 U.N. climate summit in Katowice, Poland, on Dec. 12, 2018. Czarek Sokolowski/AP Photo

Former vice president and climate change activist Al Gore endorsed Democratic presidential candidate Joe Biden for president during an Earth Day campaign event on April 22. The same day, Gore’s work in championing the multibillion dollar wind and solar energy industry met with criticism from Oscar-winning film-maker Michael Moore in his provocative new film “Planet of the Humans.”