David leads energy programs for College of the Atlantic, including efforts to eliminate fossil fuel use on campus by 2030.

David has transitioned two homes entirely off of fossil fuels, including a post and beam farmhouse built in 1828. David has received a Permaculture Design Certificate and is working with his wife, Willow, to implement a permaculture plan at their homestead in Morrill. They have planted a nut grove with chestnuts, heartnuts, pecans, and hickories, a fruit orchard with apples, pears, peaches, plums, cherries and a variety of berry bushes.

David enjoys hiking, mountain biking, alpine and cross country skiing, snowshoeing, paddling, and other outdoor activities.

As Vice Chair of Sierra Club Maine, David led successful efforts to pass two bills in the 2021 Maine legislature:
LD 1659: An Act to Create the Maine Clean Energy and Sustainability Accelerator http://legislature.maine.gov/legis/bills/display_ps.asp?LD=1659&snum=130 This bill requires Efficiency Maine to set up a new lending program in partnership with local banks, credit unions, and CDFIs, to increase the availability and decrease the costs to borrow funds for efficiency and clean energy projects. This bill requires that 40% of funding go toward ‘vulnerable communities’ including low-income communities and communities of color. David worked closely with Representative Stanley ‘Paige’ Zeigler to draft, revise and build a coalition in support of this legislation.

LD 99: An Act To Require the State To Divest Itself of Assets Invested in the Fossil Fuel Industry http://legislature.maine.gov/legis/bills/display_ps.asp?PID=1456&snum=13... This legislation requires the Maine State Treasurer and Maine Public Employee Retirement System to fully divest from fossil fuels by 2026. David worked with bill sponsor Rep. Maggie O’Neil to expand the bill to include private equity funds and all aspects of the fossil fuel industry. MainePERS will have to divest ~$1.3 billion that they currently have invested in fossil fuel companies.