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A woman shopping for frozen fruit in a Walmart store in Coquitlam, Canada.

Not Cool: How the EPA’s Refrigerant Rollback Will Raise Your Grocery and AC Costs

Expert BlogUnited StatesDavid Doniger, Dr. Richie Kaur, Jeremy Arling
NRDC and industry are suing over cost-raising delays in moving away from HFC super pollutants in supermarkets and cold storage warehouses.
A protester holds up a sign at a Stand up For Science rally held at Washington Square Park in Manhattan, New York City, on March 7, 2025.

Political Control of Research Funding Threatens Sound Science

Expert BlogUnited States
Decades of federal research funding have led to breakthroughs in medicine, technology, and environmental science. A new OMB proposal aims to derail all of this through political interference.
Brad Smith, president of Microsoft Corporation, speaks during a climate initiative event at the Microsoft Corp. campus in Redmond, Washington, on January 16, 2020. Microsoft unveiled plans to invest $1 billion to back companies and organizations working on technologies to remove or reduce carbon from the earth's atmosphere, saying efforts to merely emit less carbon aren't enough to prevent catastrophic climate change.

The Carbon Removal Market Can Work—If We Build It Right

Expert BlogUnited StatesSam F. Savitz, Dr. Jennifer DiStefano
The CDR industry’s reliance on Microsoft shows the limits of voluntary climate action—and the need for government to do its part. It’s time to take the trash out of our atmosphere.
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Investing in Clean Air for California

Expert BlogCalifornia, Los Angeles, Long Beach, San Francisco, San Diego, SacramentoZak Accuardi, Ali Lehman

California leaders can transform the state's most-polluting transportation program into climate, freight, and community benefits by supporting AB 2535 (Bonta) 

Transportation Funding Gets a Potential Boost

Expert BlogUnited StatesShruti Vaidyanathan
A new bill from Congressman Hank Johnson could help secure desperately needed operations funding for transit agencies across the country.

What’s on Caltrans’s $16B Holiday SHOPP-ing List

Expert BlogCalifornia, Los AngelesCarter Rubin

The $15.7 billion State Highway Operations and Protection Program is one of the state’s biggest infrastructure packages. But what’s really in the 599 projects?

Driving Ambition, Action, and Equity at COP28 (Part 1)

Expert BlogInternationalJake Schmidt, Brendan Guy, Joe Thwaites, Jennifer Skene

World leaders in Dubai sent a clear signal: the end of the fossil fuel era has begun, and the world is rapidly transitioning to a clean energy economy.

Delivering an Affordable, Zero-Polluting Transportation Future

Expert BlogUnited StatesDr. Simon Mui
In 2023, eight states adopted clean vehicle standards and companies invested record amounts in EVs and battery factories. The Biden administration can build on this progress with strong clean car and truck standards in 2024.

Colorado Climate Progress: 2023 Year in Review

Expert BlogColoradoAlana Miller

This past year saw continued climate action, with important policies that will reduce carbon emissions and air pollution while improving quality of life.