#1 on the MOOP list? Wood chips. Place a tarp down when stacking firewood or using saws and other tools on the Playa. This will minimize the amount of wood chips that end up on the Playa. – Blue
About the author: Tom Price
Tom Price is the former Executive Director of Black Rock Solar. Prior to that he was the Environmental Manager for Burning Man during the Green Man theme, and was in the Gulf Coast for six months during the genesis of Burners Without Borders. He's been attending Burning Man since 1997, and he's proud to say that his decade plus streak of breaking down from sun stroke on the playa on day three remains intact.