For more than three decades, Peter Howorth has been involved in numerous nonprofit environmental organizations. He was president of the Santa Barbara Underseas Foundation, an organization devoted to education, conservation, and research involving the sea. He was a founding director and president of the Friends of Channel Islands National Park. Howorth has also been involved in numerous research projects with the Santa Barbara Museum of Natural History. He has the distinction of being their first staff associate. Since 1975, Howorth has been a member of the Shark Research Committee, which studies shark attacks on humans worldwide. Howorth's work with marine mammals earned him both state and federal Senatorial Commendations. His work has been featured in numerous television documentaries, ranging from Cousteau's "Rediscovery of the World" to Tom Brokaw's Nightly News.