It's been 40 years since groundbreaking research announced the discovery of a hole in the ozone layer, a revelation that launched a rapid and successful effort to ban chemicals in hairspray ...

The ozone layer shields life on Earth. We’ll soon lose a key way to monitor its health. NASA's Aura and Canada's SCISAT near the end of missions to monitor ozone-depleting substances ...

What exactly are “Ozone Action Day” alerts, and why do they seem to multiply in the heat? So far in 2024, Colorado health officials have issued 15 Ozone Action Days in June, 22 Action Days in ...

It's been 40 years since groundbreaking research announced the discovery of a hole in the ozone layer, a revelation that launched a rapid and successful effort to ban chemicals in hairspray ...

Indeed, though the Antarctic ozone hole shows signs of recovery, the healing process is very slow. CFCs have atmospheric lifetimes of more than 50 years, so even without further emissions, a full ...

Indeed, though the Antarctic ozone hole shows signs of recovery, the healing process is very slow. CFCs have atmospheric lifetimes of more than 50 years, so even without further emissions, a full ...

Ground-level ozone concerns prompt air quality alert in Minnesota 01:33. The Minnesota Pollution Control Agency says ozone is the main concern that is triggering an air quality alert on Monday.

Summer ozone season starts Sunday. That means the Front Range’s air will be dirtier. Canadian wildfire smoke reached Colorado on Friday, but high enough overhead to minimize health harms ...

Maricopa County's ozone levels are the fourth-highest in the nation, according to the latest "State of the Air" report by the American Lung Association. Maricopa and Pinal counties received ...