TOLEDO, Ohio — The Toledo Metropolitan Area Council of Governments (TMACOG), as well as the city of Toledo, is warning the public of health risks that come with increased ground-level ozone in the ...

FORT CARSON, Colo. — As the weather warms up and an abundance of sunshine is welcomed, the Fort Carson community is encouraged to do its part to minimize peak ground-level ozone, which is an increased ...

A modeling study shows that global warming will make it harder to reduce ground-level ozone, a respiratory irritant that is a key component of smog, by cutting greenhouse gas emissions. Global warming ...

Getting your Trinity Audio player ready... Colorado has three years to lower ground-level ozone pollution to meet federal standards, and this summer’s hazy skies — caused by oil and gas drilling, ...