Evan Bush

The partial failure of Minnesota’s Rapidan Dam sheds like on the almost 4,100 dams in the U.S. that are categorized at the same risk level and condition – or worse.

A neuroscientist whose work helped pave the way for an Alzheimer’s drug candidate was indicted by a federal grand jury on charges of fraud.

In the last week, extreme weather has wreaked havoc in many parts of the U.S. and around the world. The events have brought climate change's threat into focus.

As a deadly tornado cut a path across Iowa last month, storm chasers tracked it, gathering rare data that is now offering detailed, close-range insight into powerful twisters.

Levels of contamination in Paris’ River Seine remain unsafe for Olympians to compete, with just over a month until the games, according to a report from the city of Paris.

Ahead of the Paris Olympics, athletes are voicing fears of a summer heat wave, saying the effects of climate change could make their sports dangerous.

A fault off the Pacific coast could devastate Washington, Oregon and Northern California with a major earthquake and tsunami. Researchers mapped it comprehensively for the first time.

The city of Alameda, California, has denied scientists permission to continue a controversial trial of cloud-brightening technology that could one day be used for geoengineering.

A heat wave is expected to hit much of the Southwest and parts of California from Tuesday through Thursday, as a ridge of high pressure centers over the region.

Alameda, California, has been thrust into a debate about geoengineering, after scientists began to study technology that could be used to brighten clouds to fight climate change.

In the highest hurricane season forecast they have ever issued in May, forecasters with NOAA predict an above-normal number of storms.