As Bidder 70, Tim disrupted an illegitimate Bureau of Land Management oil and gas auction in December of 2008 by outbidding oil companies for parcels around Arches and Canyonlands National Parks in Utah. His actions and 21-month imprisonment earned him a national and international media presence, which he has used as a platform to spread the urgency of the climate crisis and the need for bold, confrontational action in order to create a just and healthy world. Tim used his prosecution as an opportunity to organize the climate justice organization Peaceful Uprising in Salt Lake City. Tim is a Co-Founder of the Climate Disobedience Center, and after graduating from Harvard Divinity School, continues the work to defend a livable future.

Tim is currently engaged in land-based and reparations work in Maine.