Founded in 1973 from the hopes and dreams of a teenager, TreePeople is now the largest environmental movement headquartered in Southern California. We have inspired, engaged, and supported more than 3 million people to take action for our environment by planting and caring for trees in forests, mountains, parks, and our neighborhoods. TreePeople is a well-known and respected environmental nonprofit organization that is mobilizing people, business, philanthropists, and public agencies to work together to create green, resilient communities by planting trees, capturing the rainwater, greening schools and providing fun environmental educational activities.