Environment

Grizzly bears will be reintroduced to Washington state’s North Cascades mountain range, the federal government said this week — a decision that followed years of bitterly divided debate.

Lab-created diamonds come with sparkling claims: that they are ethically made by machines running on renewable energy. But many don’t live up to these claims.

The EPA’s newest assessment of water quality and nutrient pollution in U.S. rivers and streams shows almost no progress on cutting the nitrogen pollution that comes primarily from farm chemical runoff.

California regulators on Tuesday approved new rules to let water agencies recycle wastewater and put it right back into the pipes that carry drinking water to homes, schools and businesses.

Federal regulators will review the use of a chemical found in tires after a petition from Native American tribes in California and Washington states.

In a remote, dry patch of California farm country, a battle is raging over carrots. Or rather, over the groundwater where they’re growing northwest of Los Angeles.

The heat is about to be turned up on fossil fuels, the United States and President Joe Biden.

Endurance swimmer Lewis Pugh completed the trek to raise awareness of the need for clean rivers.

Federal research linking “forever chemicals” to testicular cancer confirms what U.S. military personnel long suspected. But as they seek testing for PFAS exposure, many wonder what to do with the results. There’s no medical treatment yet.

Some paper and bamboo straws contain so-called “forever chemicals” that could make them a less-than-ideal alternative to plastic, researchers have found.

Japan’s tsunami-wrecked Fukushima Daiichi nuclear power plant has begun releasing its first batch of treated radioactive water into the Pacific Ocean.

Florida’s coral reefs are getting hit the hardest by marine heatwaves right now, but conditions are ripe for a global coral bleaching event, NOAA says.

Scientists are working to control an invasive species that is posing a threat to the Connecticut River. Hydrilla, an invasive aquatic plant, was first detected in the river in 2016. It has been growing and spreading throughout the river ever since. “It is in the Connecticut River from Agawam, Massachusetts south throughout the Connecticut River to within a couple miles…

Hydrilla, an invasive aquatic plant, was first detected in the Connecticut River in 2016.

The Biden administration is rejecting a plea from environmentalists to toughen regulation of large livestock farms that release manure and other pollutants into waterways.

A Montana judge ruled Monday that citizens have a constitutional right to a clean and healthy environment.

Officials in Maui are warning residents that it remains too early to return to some parts of the island where firefighters have extinguished flames.

Now that July’s sizzling numbers are all in, the European climate monitoring organization made it official: July 2023 was Earth’s hottest month on record by a wide margin.

Hammerhead flatworms — an invasive pest that looks like a cross between a hammerhead shark and a leech — have been spotted in the Washington, D.C., area and across the United States.

A trail camera caught a rare ocelot sighting in Arizona, where the endangered big cat has only been spotted a handful of times over the last decade.