The environmental crises of the past often seem to disappear—have problems like acid rain and smog been solved?

The ozone layer has been on track to recover thanks to the Montreal Protocol—but a loophole may be holding it back. Chemicals ...

Warnings about poor air quality will be handled has changed for 2026, with advisories being dropped and alerts expanded to ...

The recovery of the ozone layer in Earth's stratosphere could be delayed by several years, according to an international ...

Leading ozone and climate specialists gathered in Brussels from 20 to 24 April for a key meeting under the Montreal Protocol ...

The Earth's ozone layer is expected to recover within the next 40 years as ozone-depleting chemicals are being phased out of use, a panel of international experts backed by the U.N. says. The panel, ...

Earth's ozone layer is vital to protecting all forms of life – from crops to humans – from the sun's harmful radiation. This shield in Earth's stratosphere has been depleted for decades, putting life ...

Elevated ozone levels during the 2023 Canadian wildfires were significantly linked to higher stroke incidence, according to ...

D-FW was on two of three "worst 25" rankings of cities with the highest amount of unhealthy air days in the 2026 State of Air ...

Fairfield County residents are breathing some of the worst ozone-polluted air in the country, according to a new national ...

State health officials on Monday warned that ground-level ozone is expected to be elevated from Denver southward to Colorado ...

Of 226 metropolitan areas, the Greenville-Washington area’s air is the best for high-ozone days, according to the Lung ...