The troposphere comprises the lowest layer of Earth’s atmosphere, stretching from the planet’s surface to a little over eight miles into the sky. It also contains about 10% of the ozone in the ...

Measurements from the Copernicus Sentinel-5P satellite show that this year’s ozone hole over Antarctica is one of the biggest on record. The hole, which is what scientists call an ‘ozone depleting ...

CLEVELAND, Ohio – Ozone levels in Greater Cleveland have exceeded federal standards for many years, but a recent finding by the U.S. Environmental Protection Agency could shift the region into ...

Air quality, as measured by average ground-level ozone emissions, has improved considerably in Clark County from as recently as 2008 but worsened enough over the recent past that county officials have ...

This season’s Antarctic ozone hole has swollen to an area of ten million square kilometres from mid-August – approximately the same size as Europe and still expanding. It is expected to reach maximum ...

The average area covered by the Antarctic ozone hole this year was the second smallest in the last 20 years, according to data from NASA and National Oceanic and Atmospheric Administration (NOAA) ...