Some scientists who’ve studied and modeled the complexity of Earth’s oceans and atmosphere say any “geoengineering” scheme big enough to affect the climate could put people at risk of dramatic changes ...

Visalia is once again the worst for ozone in the U.S., a pollutant impacting millions more people nationwide, the American Lung Association said.

The LA area is once again the worst for ozone in the U.S., a pollutant impacting millions more people nationwide, the ...