A trained marine biologist and an accomplished campaigner, explorer, and marine scientist, John has helped win several major victories for marine conservation since becoming the director of Greenpeace's oceans campaign in 2004. Prior to joining Greenpeace, John was involved in several environmental projects including the Sea Turtle Nesting Project in Florida, Coral Cay Conservation in Belize, and as an environmental educator for Marine Science Under Sails in Florida. He is a graduate of the Green Corps organizing fellowship, a program dedicated to training the next generation of environmental leaders and previously worked at Corporate Accountability International. He is a co-founder and former executive director of Students for a Free Tibet.