Greenwire

Denver officials are working to make the city's voter-approved green roof law easier to follow and cheaper.

Wyoming wildlife officials have reduced the number of female grizzly bears that hunters will be allowed to kill this year, limiting access in a key range for the species.

A new fissure has opened in Hawaii's Puna district near the Kilauea volcano, sending lava into residential neighborhoods and destroying a structure.

Police are looking into whether the Autopilot feature was engaged before a Tesla Inc. Model S crashed into a fire department mechanic truck in Utah.

The world's largest gold mining company has given an Idaho project the money it needs to complete permitting along the South Fork of the Salmon River.

The Justice Department has fined a Japanese cargo-vessel company $1 million for polluting waters off North Carolina.

While the dead zone in the Gulf of Mexico hits record levels, the world's largest dead zone has been confirmed somewhere else: in the Arabian Sea.

Nestlé Waters North America, the bottled water company, will send trucks full of water to Flint, Mich.

A new study suggests high blood pressure in children might have roots in their mothers' pregnancies.

EPA is reopening the public comment period on proposed changes to its hazardous air pollutant rules for leather-finishing operations after initially failing to release an analysis of the potential demographic impact on people living nearby.

The Trump administration has moved to ax the Mixed Oxide Fuel Fabrication Facility in South Carolina, a project that has already cost the Department of Energy billions of dollars.

A new lawsuit accuses the U.S. Fish and Wildlife Service of dragging its feet in deciding whether to protect a hummingbird-like fly in California.

Sometimes, species are hiding in plain sight.

Researchers set up a website last year to better track dolphins' movement in the Chesapeake Bay — and reports from the public poured in.

Some fishermen in the U.S. lobster industry are worried that lobsters' shells are getting weaker, which could lessen their odds of surviving when they're shipped out.

The Tobusch fishhook cactus has a fancy new name and an encouraging new status, as a partial success story for the Endangered Species Act.

Air Force Reserve Maj. Devon Meister was eager to fly her plane into the eye of Hurricane Irma last year, describing her job as "going to the unknown."

The Supreme Court wants the Trump administration's take on an unusual legal fight over wind development on tribal land in Oklahoma.

Expansion of wind and solar power are among the few energy issues where Republicans and Democrats find common ground, according to a new survey from the Pew Research Center.

A review team today released a long-awaited report that criticizes NOAA Fisheries for not doing enough to investigate the unusual deaths of three fisheries observers, saying in one case there had been "an information vacuum."

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