The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

Within the Earth's stratosphere, ozone is a naturally occurring gas that acts as a sort of sunscreen, protecting the planet from the sun's harmful ultraviolet radiation. In 1985, scientists ...

Re-entries of SpaceX Starlink satellites are causing environmental concerns by releasing aluminium oxide, which could harm ...

The Valley has seen decades of big business deals and population growth. A yearslong fight over air pollution could now ...

for distinct but related reasons — partly to include stratospheric influences such as ozone depletion (and recovery) and the effects of solar variability on tropospheric climate, and partly to ...

Learn about the ozone hole above Antarctica that is now confirmed to be shrinking due to reductions of harmful ...

Sometimes it’s referred to as smog. There are two categories of ozone: stratospheric and ground-level. Stratospheric ozone is naturally found in the earth’s atmosphere anywhere from 6 to 30 ...

More information: Na Liu et al, Impact of Methane Emissions on Future Stratospheric Ozone Recovery, Advances in Atmospheric Sciences (2025). DOI: 10.1007/s00376-024-4142-6 Journal information ...

The Arctic is one of the regions most strongly affected by climate change. In recent decades, the temperature there has risen ...

SpaceX's latest Starship flight test explosion raises concerns about space junk affecting Earth's stratosphere and ozone layer. Researchers highlight ...

Roots of ozone recovery Within the Earth's stratosphere, ozone is a naturally occurring gas that acts as a sort of sunscreen, protecting the planet from the sun's harmful ultraviolet radiation.