Climate models suggest a small nuclear war in the tropics would do even more damage to the ozone layer than a larger nuclear ...

Minnesotans weathered the third air quality alert triggered by ozone of the year Monday. If two more happen, it will tie the ...

Increase in wildfire-driven ozone linked to premature deaths across the U.S. Smog from wildfires is getting worse across much ...

Ozone advisory issued. The elderly and those with weak constitutions are advised to refrain from outdoor activities.” This ...

The space industry is surging. In coming years, nearly 10,000 spacecraft are slated to launch into low-Earth orbit for a ...

An air quality alert is in effect for the Twin Cities metro and parts of central Minnesota from noon to 9 p.m. Tuesday as ...

Because ozone is a gas, the Minnesota Pollution Control Agency says masks offer no protection during the current air quality ...

For decades, the United States made steady progress in reducing surface ozone pollution, the main ingredient in smog. But ...

While you may think of ozone as a welcome element in our Earth's atmosphere that protects us from the sun's harmful radiation, ground-level ozone that we breathe is a harmful pollutant.

Wildfires have offset nearly four years of ozone-control progress nationwide, with larger setbacks in the West and Midwest.

Smog linked to wildfires is getting worse across much of the U.S., playing a role in more than 300 additional premature ...