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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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Putting Climate into the Infrastructure Law

Expert BlogUnited StatesDeron Lovaas
Transportation investments from the bipartisan infrastructure bill could be either a boon for sustainable mobility choices, or a boon for harmful carbon emissions, researchers at Georgetown University said in a new report.

WA & OR Solidify West Coast Vehicle Electrification

Expert BlogWashington, OregonPatricio Portillo, Dr. Simon Mui

Adopting the Clean Trucks Program in Oregon and the Advanced Clean Trucks and Zero Emission Vehicle Programs in Washington solidifies the West Coast as one of the world’s biggest markets for electric vehicles.

Clean Truck Rules Will Benefit Southern New England

Expert BlogMassachusetts, Connecticut, Rhode IslandKathy Harris, Patricio Portillo

The states of Massachusetts, Connecticut, and Rhode Island stand to see $12.7 billion dollars in net societal benefits, improved health and air quality, and increased investments over the next 30 years through adoption of Clean Truck Programs in their states.

Congress Drives Toward a Cleaner Future

Expert BlogUnited StatesMarc Boom, Deron Lovaas

The Build Back Better Act makes historic investments in transit and accelerates the transition to electric vehicles. Now it’s the Senate’s turn to pass it.

New York Must Act on Clean Trucks

Expert BlogNew YorkKathy Harris, Patricio Portillo

The future of clean, zero-emission trucks is now in the hands of the New York Department of Environmental Conservation. Following a robust comment period, the State must decide whether to move forward with the Advanced Clean Truck (ACT) rule. 

Top 3 Take-Aways on Electric Vehicles from COP-26

Expert BlogUnited States, InternationalDr. Simon Mui

Some of the biggest announcements were made last week at the COP-26 in Glasgow on “Transport Day.” The focus: zeroing out pollution from some of the world’s dirtiest and climate-busting sources including cars, trucks, ships, 2- and 3-wheelers, and planes.

Solving Supply Chain Issues Must Center Health and Workers

Expert BlogUnited StatesHeather Kryczka, Patricio Portillo

Now more than ever, governments must lean into labor laws that protect workers and environmental standards that accelerate the transition to zero-emission freight movement, all to help untangle supply chains and mitigate pollution.

Portland POEM Project Models Equitable Transportation Plans

Expert BlogPortland (Oregon), OregonElizabeth Stampe

As Americans readjust to life as our communities reopen, we’re unfortunately also seeing more traffic and tailpipe pollution. But Portland, Oregon, is looking to chart a different path forward.

25 Cities Demonstrate How Major Climate Wins Are Possible

Expert BlogUnited StatesHilary Firestone

Cities account for an overwhelmingly large percentage of global carbon emissions, primarily through transportation and buildings. But 25 cities, empowered by the Bloomberg Philanthropies American Cities Climate Challenge, found that when they teamed up together, they could make real strides…

St. Louis Launches SiLVERS EV Shuttle Service for Seniors

Expert BlogSt. Louis, MissouriStefan Schaffer

In the transition to electric vehicles (EVs), St. Louis is thinking outside the box: On September 30, the city celebrated the launch of the innovative St. Louis Vehicle Electrification Rides for Seniors (SiLVERS), an equity-minded program that will provide EV…

Nevada Becomes 16th Clean Cars State and Model for Others

Expert BlogNevadaDr. Simon Mui

Nevada became the 16th state in the nation to adopt clean cars today, after the Legislative Commission approved the Clean Cars Nevada program in a bipartisan vote. The vote marked the final approval step after the Nevada State Environmental Commission…

New Calculator Shows Bigger Highways Won't Fix Traffic

Expert BlogUnited StatesCarter Rubin

We’ve all seen new and wider highways fill up with traffic. A new tool will help practitioners and advocates better understand the impacts of new and widened highways.

Which Way for Colorado's Transportation Future?

Expert BlogColoradoCarter Rubin, Rabi Abonour

The Colorado Department of Transportation (CDOT) is proposing a new greenhouse gas reduction rule this fall that would require the state and its regions to cut climate-warming pollution from transportation by investing more in sustainable mobility options.