Light-duty market may benefit from natural gas-based ethanol, study finds

Report — Sep 25, 2025

Corporate Due Diligence, Auto Industry, and Battery Supply Chains

This report suggests that the European Union's Corporate Sustainability Due Diligence Directive is a useful framework for harmonizing existing national-level regulations on the corporate due diligence of critical mineral supply chains.

Testimony and Public Comments — Sep 22, 2025

Comment on the Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards

This public comment focuses on the proposed rule as it relates to RFF's research expertise in two ways: regarding the scientific underpinnings of the Endangerment Finding and the proposal’s overarching costs and benefits.

Media Highlight — Jul 29, 2025

NPR: “The EPA Proposes Gutting Its Greenhouse Gas Rules. Here’s What It Means for Cars and Pollution.”

Insights from RFF Fellow Joshua Linn and quotes from Fellow Beia Spiller are included in this story.

Media Highlight — Jul 16, 2025

NPR: “Do You Want Federal Money for an EV or Home Solar? Time Is Running Out—Fast”

Analysis from RFF Fellows Joshua Linn and Beia Spiller is cited in this article about the end of several federal tax credits.