Paul is the author of Clean Meat: How Growing Meat Without Animals Will Revolutionize Dinner and the World. He is the CEO and co-founder of The Better Meat Co. and the host of the Business for Good Podcast. Prior to publishing Clean Meat, he was known for being an animal protection advocate, both as the founder of Animal Outlook (formerly Compassion Over Killing) and a Vice President at the Humane Society of the United States (HSUS). In 2008, Paul was inducted into the Animal Rights Hall of Fame. He is vegan and has a naturalistic worldview.