PORTLAND, Maine — Smoke from Canadian wildfires started making air quality worse in the eastern U.S. on Wednesday as several ...

CHICAGO (WLS) -- The Chicago area was under an air quality alert Wednesday due to the Canadian wildfire smoke. Environmental officials said the pollutants from the smoke will be sticking around the ...

Atmospheric CO₂ concentrations are surging, even as emissions level out. Natural carbon sinks are showing signs of faltering ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...

A portion of eastern and northeast Iowa has "unhealthy" air quality Wednesday, according to the Environmental Protection Agency.

In a world hungry for low-pollution alternatives ... frequent air travelers might repay their historical carbon debt by flying planes whose waste absorbs carbon dioxide. We’d suggest it ...

Iowans — especially those with heart and lung disease — should avoid long or intense activities and take extra breaks during strenuous activity outdoors in areas where air quality is rated unhealthy.

The Association of Air Pollution Control Agencies ("AAPCA") issued the 2025 edition of its annual report titled: State Air Trends ...

It is wildfire season, which could mean more air pollution, too ... particulates, carbon monoxide, nitrogen dioxide, and sulfur dioxide. It was established by the Environmental Protection Agency ...

Ozone pollution is a global environmental concern that not only threatens human health and crop production, but also worsens ...