Rob Greenfield is an adventurer, activist, humanitarian, and dude making a difference dedicated to leading the way to a more sustainable and just world. He is the creator of The Food Waste Fiasco, a campaign that strives to end food waste and hunger. He has cycled across the USA twice on a bamboo bicycle and lived off the grid in a 50 square-foot tiny home in San Diego before auctioning it and raising enough money to build 10 tiny houses for people with no homes. He is currently traveling in the service of others and owns just 111 possessions. He is the host of Free Ride on Discovery Channel and the author of Dude Making a Difference and donates 100 percent of his media income to grassroots nonprofits.