This policy update explores the U.S. multi-pollutant emissions standards for model years 2027 and later, which establish new ...

Delaying standards also leads to higher total cost of ownership per vehicle (due to higher lifetime fuel costs), higher ...

Explores Boom Supersonic's claim of achieving “Boomless Cruise” and what it means for the future of supersonic flight.

Industry investments and consumer incentives from the Inflation Reduction Act (IRA) are strengthening American leadership on ...

Chile has distinguished itself as a clean transportation champion by setting ambitious emissions reduction and vehicle ...

This paper analyzed six different aviation climate levy designs and compares their impact on emissions, revenue, and equity ...

This report is a gap analysis, detailing the reduction in the global average GHG fuel intensity (GFI) and the operational ...

Assesses global shipping emissions over 2016–2023 using updated, state-of-the-science methods, providing new insights into the maritime shipping sector's recent climate and environmental performance.

States that have implemented the Advanced Clean Cars II (ACC II) program are leading the way in the adoption of clean vehicle ...