Satellite data shows that 2020 and 2016 are essentially tied as the hottest years since records began.

States and hospitals are starting to declare 'crisis standards of care' as the pandemic floods their ERs. The orders have consequences – both good and bad, as a medical ethicist explains.

The curator at UC Merced describes the evacuation and shows a selection of photographs from the 110-year history of the park.

Smoke from wildfires could be a surprising new route for the spread of microbes, experts believe.

Provisional figures indicate that 2020 will be one of the hottest in a record dating back to 1850.

A fire scientists offers a six-point strategy for preventing wildfires and living safely in flammable landscapes.

California was thought to be an exception, a place where oil field operations and tectonic faults apparently coexisted without much problem. Not any more.

Is poor management of forests to blame for deadly fires in the United States?

Restoring western forests – thinning out small trees and dead wood – is an important strategy for reducing the risk of massive wildfires. But these projects aren't fast, easy or cheap.