Shannon is Executive Director of Public Lab, focused on building and supporting community-based environmental health monitoring programs across the world.

She is acting Vice Chair of the [U.S. EPA] National Advisory Council on Environmental Policy and Technology, Vice Chair on the Board of Directors of the Citizen Science Association, a co-organizer of the Gathering for Open Science Hardware and a member of the World Economic Forum Global Future Council on Environment. Shannon is an Ashoka Fellow, a Harvard Berkman Center for Internet and Society Research Affiliate, and a Senior Fellow of the Environmental Leadership Program.