Exhausting Options: Assessing SIP-Conformity Interactions

Grist: “The Year the US Doubled Down on Critical Minerals”

RFF Fellow Beia Spiller comments on the federal government’s use of equity stakes to bolster the domestic critical minerals industry.

2026 Transportation Engineering, Economics, and Policy Workshop

2026 Transportation Engineering, Economics, and Policy Workshop

Inside Climate News: “Trump Administration’s Threats to Shrink or Eliminate National Monuments Could Endanger Drinking Water for Millions”

RFF Senior Fellow Margaret Walls comments on the importance of national monuments for clean water resources.

Contrails, Aviation, and Climate Change

This issue brief explores how contrails are formed from the combustion of jet fuel, how contrails effect the climate, and what can be done to reduce them.