“Exercise is essential for good health. But we can't exercise our way out of the obesity epidemic.”

American environmental activist, producer, and writer

Laurie Ellen David is an American environmental activist, producer, and writer. She is known for her work on public environmental and health issues, and for producing the Academy Award-winning An Inconvenient Truth in 2006. She later partnered with Katie Couric to executive produce Fed Up in 2014, a documentary about the causes of obesity in the United States. She also serves as a trustee of the Natural Resources Defense Council, sits on the advisory board of the Children's Nature Institute, and writes as a contributing blogger for The Huffington Post.