The skies above parts of the eastern United States were starting to clear up Friday, giving a reprieve to residents after more than two days of acrid air and orange haze.

As smoke from the Canadian wildfires rolled over the East coast, New York City officials scrambled to respond as they confronted a lack of preparation for the emergency.

Editor's note: This story was initially published Monday, June 5, and has been extensively updated.

Some of California’s biggest lakes are making dramatic comebacks as the state’s “big melt” of snowpack reshapes the landscape in historic — and perhaps unexpected — ways.

Extreme heat waves and drought due to climate change could shock the global supply of wheat and send prices soaring, according to a new study.

As wildfire season approaches, here’s what experts are saying about how natural forces like climate change and dense snowfalls earlier this year may affect it.

The seven states that rely on the Colorado River for power and drinking water have reached a deal on cuts to keep the drought-stricken river flowing.

High temperature records fell by the dozen this week as western Canada continued to suffer in a prolonged, scorching heat wave.

Heavy rainfall expected to deluge South Texas could make border crossings a more risky endeavor for migrants crossing the U.S. southern border after the expiration of asylum restrictions known as Title 42.

The Biden administration’s proposed power plant regulations could dramatically reduce carbon emissions while also allowing some fossil fuel infrastructure to continue operating without an end date in sight.

Researchers have constructed a rough draft of a human pangenome, a collection of DNA that represents the genetic information from 47 individuals.