Colorado air regulators voted unanimously to adopt updated landfill standards to cut down on methane pollution coming from garbage dumps.

Leaders of key federal agencies have shown an unusual willingness to grant favors to the nation’s worst polluters, even if it comes at the...

A new state law aims to restrict community groups in Louisiana from collecting and making public local air quality data. Now, those groups...

One year after launch, a traffic-reduction program has proved to be a big win for the Big Apple, with benefits bigger than expected...

Since Trump returned to office, there has been a wave of polluter-friendly moves that threaten both people’s health and the climate.

No matter what the Trump administration says about coal, there’s nothing beautiful or clean about it. The dirty fossil fuel endangers people...

These charts illustrate both the challenges we face — and some reasons for optimism.

It was called “the BP oil spill on land.” Now, federal methane safeguards put in place after a massive gas leak outside Los Angeles in 2015...

Warming is supercharging natural wetland methane emissions—already a third of global totals—which could double by century’s end if heat...