Trump promised energy dominance and lower prices, but sweeping tariffs do the opposite. In a policy brief for @cleanaircatf.bsky.social, David Yellen and I outline how they raise costs, chill investment, and stall manufacturing. We also suggest smarter policy options: www.catf.us/resource/pol...

As the U.S. works to build a cleaner, more secure energy system, misguided trade policy is getting in the way. Tariffs are inflating costs, slowing deployment, and threatening U.S. energy and economic security. www.catf.us/resource/pol...

Decarbonising the global transportation and logistics sector is a significant challenge, particularly in the aviation and maritime industries. CATF’s David Yellen joined Oman Sustainability Week and The Economist Intelligence Unit to discuss pathways to get the sector on track.

The U.S. withdrawal from the Paris Agreement and retreat from international institutions doesn’t just jeopardize global climate action – it threatens America’s economic and geopolitical future.

The benefits of staying engaged – economic, diplomatic, and strategic – far outweigh the costs. Read the full piece 👇 www.catf.us/2025/04/pull...

I'm honored to represent @cleanaircatf.bsky.social on the Dept. of Commerce’s Environmental Technologies Trade Advisory Committee, alongside a phenomenal group of advisors: t.co/KDrWdQZJX6