"No matter what happens at the federal level, this program will remain in place." New state policy could reshape the ...

Readers have asked about Arizona's cleaner-burning gasoline formulas. Do they improve air quality, health and greenhouse gas ...

Urgent attention is needed to control pollution and prevent pollution-related disease, with an emphasis on air pollution and lead poisoning, and a stronger focus on hazardous chemical pollution.

In recent years, high ozone levels have been detected at Chatfield State Park, South Table Mountain in Golden, Boulder ...

A digital queueing system at busy ports could reduce traffic jams and lower the maritime shipping industry's carbon emissions ...

Michigan, Ohio and Ontario failed to reduce the total phosphorus entering Lake Erie in 10 years. State officials and environmentalists are butting heads on where to go from here.

A study by UC San Diego researchers reveals that pollutants found in the sewage-laden Tijuana River are ending up in the air ...

Doctors, environmental groups and residents are trying to determine if there is a causal connection between pollutants from ...

Every year, 11.6 million pounds of plastic trash makes its way into Lake Michigan, Chicago’s largest source of drinking water ...

Otherwise, you are contributing to the runoff pollution that lowers the water quality of our ponds, lakes and rivers. So, when you are mowing from now on, think about your impact and the excitement ...

Many power plants benefiting from exemptions rank among the nation’s worst polluters. The Trump administration says cheaper ...

The House and Senate both voted to loosen regulations on air pollutants like dioxin and mercury, which are associated with ...