NOx

August 12, 2026

Diesel Emission Controls Work…Which Is Why They Are Under Attack

Dave Cooke
Senior Vehicles Analyst

Joe Raedle/Newsmakers

October 30, 2024

Trucking Industry Disinformation Will Cost Lives

Dave Cooke
Senior Vehicles Analyst

Cholla powerplant in Arizona.

Alan Stark/Wikimedia Commons

March 23, 2023

Good News—and Bad—about Fossil Fuel Power Plants in 2023

Paul Arbaje
Senior Analyst

December 15, 2022

Truck Loopholes 101 – When Emissions Regulations Don’t Match the Real World

Dave Cooke
Senior Vehicles Analyst

December 1, 2022

Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Dave Cooke
Senior Vehicles Analyst

Rufa A-zade/Wikimedia

September 5, 2022

Desperate Tampering Industry Trying to Pass RPM Act to Continue Polluting

Dave Cooke
Senior Vehicles Analyst

June 1, 2022

EPA’s Proposed Truck Rule Delays Justice for Freight-Impacted Communities

Dave Cooke
Senior Vehicles Analyst

Chantal Cadorette/Unpslash

March 7, 2022

EPA Recognizes Problem of Truck Pollution, But Hesitates on Solution

Dave Cooke
Senior Vehicles Analyst

Brian Stalter/Unsplash

February 28, 2022

The Truck Industry’s Decades-long War on Stronger Pollution Controls

Dave Cooke
Senior Vehicles Analyst

@smwallday/unsplash

November 5, 2021

Verdict on First US Fuel Economy and Emissions Program for Trucks: Success?

Dave Cooke
Senior Vehicles Analyst

sebcreativo/Unsplash

September 16, 2021

Driving Away Dirty Air

Akash Singh
Western States Policy Advocate

September 17, 2020

The RPM Act – How a Multi-billion Dollar Industry is Trying to Ruin Our Air

Dave Cooke
Senior Vehicles Analyst

Lisa Brettschneider/flickr

August 20, 2020

California Moves Forward to Address Pollution from Heavy-Duty Trucks

Dave Cooke
Senior Vehicles Analyst

January 6, 2020

Trump EPA Doing Something to Actually REDUCE Pollution from Trucks

Dave Cooke
Senior Vehicles Analyst

Jeremy Rempel. CC-BY-ND 2.0 (Flickr)

December 17, 2019

EPA Tried to Allow Dirtier Trucks Without Studying Whether That Would Be Bad for Health

Dave Cooke
Senior Vehicles Analyst

Aerial of smoggy day in Los Angeles, CA

VIktor Hanacek/Picjumbo

October 9, 2019

Do Renewables Lead to Increased Air Pollution from California Power Plants?

Mark Specht
Senior Manager, Western States Energy

April 22, 2019

Air Pollution Should be Monitored Using the Best Available Science: Meh, Says the EPA

Anita Desikan
Former Staff

November 9, 2018

No, Natural Gas Power Plants Are Not Clean

Mark Specht
Senior Manager, Western States Energy

Jeremy Rempel. CC-BY-ND 2.0 (Flickr)

December 4, 2017

The EPA Knows Glider Trucks Are Dangerously Dirty: It’s Time to Keep Them Off the Road

Dave Cooke
Senior Vehicles Analyst

Jeremy Rempel. CC-BY-ND 2.0 (Flickr)

November 1, 2017

Pruitt Seeks to Reopen Truck Pollution Loophole per Cronies’ Request

Dave Cooke
Senior Vehicles Analyst

January 17, 2017

#dieselgate, pt. II: Sergio's Revenge

Dave Cooke
Senior Vehicles Analyst

Workers on a VW assembly line. Photo: iStock

June 28, 2016

Volkswagen Reaches Agreement on Dieselgate, but Questions Remain

Dave Cooke
Senior Vehicles Analyst

Workers on a VW assembly line. Photo: iStock

March 21, 2016

What We Need from Volkswagen, EPA, and California to Make Things Right

Dave Cooke
Senior Vehicles Analyst

October 13, 2015

Automaker Rankings Revisited—Does Volkswagen Now Have the “Dirtiest Tailpipe”?

Dave Cooke
Senior Vehicles Analyst