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Benthic cyanobacteria bloom underwater and appear much more toxic than the kind that float on the surface.

Extreme weather often washes away personal belongings. Across the country, lost-and-found networks seek to reunite these objects with disaster survivors.

Spokane Mayor Lisa Brown says nearly half of the city's neighborhoods have either been evacuated or are at risk as the fires remain uncontained.

Forty years ago, there were just a few loons in the state. Now, biologists working with them say it’s time to let them nest without help from humans.

Extreme weather often washes away personal belongings. Across the country, lost-and-found networks seek to reunite these objects with disaster survivors.

Scientists are starting to reintroduce a 20-legged predator to kelp beds off Washington state after an underwater pandemic nearly wiped it out.

Five firefighters have died battling wildfires in the past six weeks, raising questions about how stretched firefighting resources are in a season that is expected to be both long and severe.

The heat dome encasing much of the eastern U.S. is reviving concerns about protecting workers from the heat. Many states have laws in place but some, including Florida, have rolled them back.

Some Texas towns have seen more than 20 inches of rain since the start of the week. Hundreds of people have been rescued from floodwater and at least two people have lost their lives.

The Forest Service says it's fully staffed with seasonal firefighters going into summer but there are still questions about whether the government is prepared if major wildfires get out of hand.