"Avoid all physical activity outdoors," the EPA advises at this level. According to the EPA's map, Picture Rocks and Marana ...

From books and movies set in the country to quirky-but-true facts, Canada is a cool place (& we're not just talking about the ...

How a new monitoring system improves fire detections and captures the air pollution effects of planned peatland burns.

We’ve all heard that human overpopulation is a crisis. In 2017, Bill Nye warned us about the planet’s “people problem,” and ...

Our kids deserve to live in a country where no student is forced to inhale toxic exhaust from their own bus just to get to ...

Their findings "also point to the importance of public health interventions aimed at reducing children's exposure." ...