Mexico City’s air is getting cleaner, but ozone levels near the ground aren’t decreasing as fast as expected. Climate change is partly to blame.

Across several states, a quiet chemical industry campaign is making it harder to hold air polluters accountable.

The number of victims receiving aid has tripled in recent years, a Post analysis finds, as the illness’s toll becomes more apparent.

Tackling air pollution and climate change together could save lives and boost economies, UN reports show.

The PA Department of Environmental Protection says between 2023 and August 2026, Shell’s ethane cracker, exceeded limits on visible emissions set by its state-issued air permit more than two dozen times.

Some see this moment of rapidly growing energy demand and desire for reliable, domestic energy as an opportunity to revitalize coal’s image.

Pesticide manufacturers have voluntarily canceled registrations for products containing paraquat in California — kicking off a statewide phase-out of the controversial herbicide.

The Trump administration’s mineral agenda will bolster defense technologies and data centers. It’ll also provide a big boost for EV companies.

The planned Pecos County facility may generate the most greenhouse gas emissions of any single site in the U.S.

One resident said he ‘wasn’t expecting black smoke,’ which can signal higher levels of toxic pollutants in the air. Another said she’s concerned about potential health impacts because she wants to have a family.

As the Sandy Fire approached the Santa Susana Field Laboratory in May, state and local officials had to move quickly to assess how safe the air was amid radiation concerns as the fire burned a quarter mile from the contaminated area.

People are racing out to buy them worldwide as gasoline prices stay high. The Iran war has made Trump “salesman of the year,” said one executive in Lahore.

The Pittsburgh region suffers from elevated cases of asthma and other chronic respiratory conditions. When wildfires degrade the air, the population is more vulnerable.

Data center developers can use nondisclosure agreements and shell companies to shield the details of their deals from the public; even state officials also say they need more transparency from the industry.

The tech giant is investing in the natural-gas-burning power plant as part of a huge data center in Texas, even as it pledges to honor climate commitments.

Emails reveal how Pennsylvania officials worked behind the scenes to clear the way for projects in Upper Merion Township.

In Nebraska, Blackshirt Feeders LP is building the country’s largest feedlot for 200,000 beef cattle on a square-mile slab of concrete.

Seemingly unlikely alliances are springing up in Canada and the U.S. to prevent rural communities from becoming a ‘toxic CO2 dumping ground.’

As regulations have reduced prenatal exposure to harmful emissions from vehicles and industry in recent years, smoke from climate-fueled wildfires is erasing air quality gains.

A published study suggests exposure to fine particle air pollution may trigger flare-ups.