Mishaps with equipment manufacturers, maintenance crews and power suppliers are threatening fleets’ transition from diesel engines.

The South Coast Air Quality Management District will hold a summit in Palm Desert to discuss the topic of Coachella Valley blow sand and dust, the agency announced Thursday. Riverside County ...

The Trump administration dismissed members of the Environmental Protection Agency’s Clean Air Scientific Advisory Committee and Science Advisory Board Tuesday, a day before the confirmation of new ...

FRESNO, Calif. (KFSN) -- The sale of new diesel trucks in California won't have to hit the brakes any time soon. That's ...

The plot has thickened in the ongoing saga of California OHV registrations following the sundowning of the Red Sticker ...

Love’s Travel Stops built a new travel center in California even as diesel was targeted for phase-out; now that’s not an ...

A California state legislator has introduced a bill seeking to halt funding for California’s high speed rail project from the ...

Canada just made history with the world’s first government-backed Direct Air Capture (DAC) offset protocol. Here's what it ...

I recently published a post questioning the legality of the California Air Resources Board's Enforcement Notice.  The California legislature ...

THE BUZZ: TO THE TRENCHES — As President Donald Trump and Republicans lead a multi-front assault on sanctuary-city laws, ...

Heavy-duty truck manufacturers and dealers are caught in a swirl of shifting and conflicting rules over zero-emissions big ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.