Leonardo DiCaprio issued a strong, impassioned message on Earth Day. "Today, on Earth Day of all days, the U.S. House of Representatives is set to vote to gut the Endangered Species Act (ESA), trading the future of life on Earth for the short-term economic gain of a wealthy few," DiCaprio, 51, wrote via Instagram on Wednesday, April 22. "The ESA was signed into law over 50 years ago by President Nixon after passing 92-0 in the Senate and 355-4 in the House.