Air-pollution laws, enforcement sprees and educational campaigns haven’t worked. What will it take to make drivers shut off their engines when they’re parked?

Yes, even for healthy people.

Today's pollution is very different from the Brown Cloud of the '70s and '80s but it could be just as bad.

Years of worsening water quality from toxic runoff have increased algae blooms and killed the sea grass that manatees graze on, experts say.

A federal investigation is under way and a Republican lawmaker is urging the Fish and Wildlife Service to designate the sea mammal as endangered, rather than threatened.

An environmental catastrophe is threatening Turkey's Marmara Sea.

The study shows that people with lower income and education have worse lung health, even though air quality has improved in recent decades.

Death toll at 749, on course to pass high mark set in 2018, as pollution including nutrient runoff kills seagrass

DURHAM, N.H. (AP) — When the pandemic struck last year, oyster farmer Chris Burtis soon realized the restaurants that bought his oysters had mostly closed. Without a new market, his Ferda Farms faced potential economic ruin.

New data compiled by the E.P.A. shows how global warming is making life harder for Americans in myriad ways that threaten their health, safety and homes.

Researchers uncovered stark disparities between white people and minorities across thousands of categories of pollution, including trucks, industry, agriculture and even restaurants.

This is a story about maps and death.