PAYNE INSTITUTE FOR PUBLIC POLICY SPRING HYBRID SEMINAR SERIES
Critical Minerals from Mine Wastes –
Legacy Mine Waste as an Opportunity for Restoration and Remining Projects
APRIL 10, 2025
Topic: Critical Minerals from Mine Wastes – Legacy Mine Waste as an Opportunity for Restoration and Remining Projects
SPEAKERS:
– Ty Churchwell, Trout Unlimited – Government Affairs Program, Mining Coordinator
– Stephen D’Esposito, President & CEO, Regeneration | President & CEO, RESOLVE
– Elizabeth Holley, CSM Mining Engineering, Associate Professor
– Cecilia Lazo-Sköld, Regeneration, Senior Director for Site Innovation
– Molly Morgan, CSM, PhD Candidate in Geology
MODERATOR: Brad Handler, Payne Institute, Energy Finance Lab, Program Director
Hosted by: THE PAYNE INSTITUTE FOR PUBLIC POLICY
Time: THURSDAY, APRIL 10, 2025| 9:30AM – 10:30AM MT
LIVE: MARQUEZ HALL, ROOM 235, 1600 Arapahoe St, Golden, CO 80401, COLORADO SCHOOL OF MINES (MAP)
OR
ZOOM VIRTUAL SEMINAR – NO REGISTRATION NECESSARY – FOLLOW THIS LINK
PLEASE FEEL FREE TO DOWNLOAD AND SHARE THIS SEMINAR FLYER

Please join the Payne Institute for Public Policy at the Colorado School of Mines as we host an expert panel for a hybrid seminar discussing Critical Minerals from Mine Wastes – Legacy Mine Waste as an Opportunity for Restoration and Remining Projects on Thursday, April 10, 2025 in Golden, CO.
As the US focuses on domestic mineral supply chains, mine wastes are receiving increasing attention as one potential source of critical minerals. Panelists will discuss the challenges and opportunities around critical mineral production from mine tailings, mine waters, and other mine waste types. In addition to technical R&D, the panel will address the broader context of markets and policy, in particular the Good Samaritan Remediation of Abandoned Hardrock Mines Act.
GUEST SPEAKERS:

Ty Churchwell, Trout Unlimited – Government Affairs Program, Mining Coordinator
Ty is the Mining Coordinator for Trout Unlimited (TU), America’s largest and oldest river and public land conservation organization based in DC. In his capacity, Ty oversees TU’s mining policy portfolio to include, Good Samaritan law implementation, critical minerals policy development and 1872 Mining Law reform. As a resident of Durango, Colorado, Ty also coordinates the Community Advisory Group (CAG) for the Bonita Peak Mining District Superfund site in San Juan County, Colorado.

Stephen D’Esposito, President & CEO, Regeneration | President & CEO, RESOLVE
Stephen D’Esposito is founder, President and CEO of Regeneration a B-Corp start-up that produces biodiversity, community, and climate positive minerals for the energy transition, green tech, and sustainable brands through remining, reprocessing, and restoration.
He also leads RESOLVE, a non-governmental organization that works with business, government, foundation, and NGO and community leaders to forge sustainable solutions to critical social, health, and environmental challenges.
He chairs the board of Nightjar, a conservation technology startup. It’s first produce TrailGuard AI, as named by TIME as one of the best inventions of 2023.

Elizabeth Holley, Associate Professor of Mining Engineering, Colorado School of Mines
Dr. Elizabeth Holley has worked in mineral exploration around the world. She is an Associate Professor at Colorado School of Mines and a fellow of the Payne Institute. She leads the Responsible Critical Minerals Initiative funded by the National Science Foundation and serves as the site director for the Industry-University Cooperative Research Center to Advance the Science of Exploration through Reclamation in Mining.

Cecilia Lazo-Sköld, Regeneration, Senior Director for Site Innovation
Cecilia Lazo-Sköld is the Senior Director for Site Innovation at Regeneration Enterprises, a public-benefit company that remines and restores legacy mining sites. She is a geochemist/environmental engineer, currently working on metal recovery from mine waste and waste repurpose. Lazo-Sköld previously worked at Rio Tinto Iron Ore as a technical expert advising different assets including copper operations in Mongolia, diamond and uranium operations in Australia, and lithium operations in Serbia. Prior to that, she worked on the cleanup of Superfund and abandoned mine sites in North America. She started her career working on nuclear waste disposal in Sweden. Lazo-Sköld received a B.S. in chemistry from Pontificia Universidad Católica del Perú and an M.S. in environmental science and engineering from the Colorado School of Mines (1999).

Molly Morgan, PhD candidate in Geology, Colorado School of Mines
Molly Morgan is a PhD candidate in Geology at the Colorado School of Mines under the advisement of Dr. Elizabeth Holley. Her research focuses on copper recovery and non-traditional stable isotope dynamics in lime-treated acid mine drainage. She also explores how federal Good Samaritan legislation could shape future strategies for managing abandoned and legacy mine sites and advancing mineral-focused resource recovery.
MODERATOR:

Brad Handler, Program Director, Energy Finance Lab, Payne Institute for Public Policy at Colorado School of Mines
Brad Handler is the Program Director of the Energy Finance Lab at the Payne Institute for Public Policy at the Colorado School of Mines. The EFL’s research focuses on developing financial mechanisms and using markets to aid in decarbonization, with an emphasis on extractive industries. Previously, he was an equity research analyst in the Oil & Gas sector at investment banks including Jefferies and Credit Suisse.