Headshot of Rachel Meidl

Rachel A. Meidl

Fellow in Energy and Sustainability | CES Deputy Director

Biography

Rachel A. Meidl, LP.D., CHMM, is the fellow in energy and sustainability and the deputy director of the Center for Energy Studies at Rice University’s Baker Institute. She also serves as a strategic advisor on circular economy for MSCI, Inc. Her research focuses on sustainability, circular economy, life cycle management, and understanding the environmental, economic, and social impacts across energy and material supply chains. 

Meidl was previously appointed deputy associate administrator for the Pipeline and Hazardous Materials Safety Administration, an agency of the U.S. Department of Transportation. Prior to her government service, she was director of regulatory and technical affairs at the American Chemistry Council. She has 28 years of experience in industry, academia, government, finance, and international relations.

Meidl is a certified hazardous materials manager, and holds a bachelor’s degree in conservation biology and zoology and animal physiology from the University of Wisconsin–Madison, a master’s in environmental policy and management, a master’s in applied science and technology with certifications in chemistry and physics, and a doctorate in law and public policy from Northeastern University. She is a committee member of the National Academies of Sciences, Engineering, and Medicine’s Roundtable on Plastics.

Contact at [email protected] or 713-348-2256.

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Opening Schrödinger’s Box: Rethinking Carbon Beyond the Binary in Plastic Recycling
A new working paper by Rachel A. Meidl examines how the circular carbon economy (CCE) reframes carbon as a managed system asset and applies this framework to plastics and advanced recycling, highlighting tensions between narrow definitions of circularity and broader system performance, including carbon retention, lifecycle outcomes, and displacement effects across the full carbon cycle.
Rachel A. Meidl May 7, 2026