Greenwire

A mysterious pinging sound coming from the seafloor in the Arctic has spurred an investigation by the Canadian military.

PolyMet Mining Corp. has formally applied for a permit to open the first open-pit copper and nickel mine in Minnesota in a move that could increase conflicts over the project in the northeastern part of the state.

Twenty years ago, two environmentalists took an unexpected hike through Yellowstone National Park together after their meeting on large carnivores was canceled due to a federal government shutdown.

The National Wildlife Refuge System in Colorado, Montana and Wyoming and other states will see reorganization due to program and staff cuts, according to federal wildlife regulators.

Former Florida Gov. Jeb Bush (R) will teach a course at Texas A&M University this winter.

Donelle Harder, the communications director for Senate Energy and Public Works Chairman Jim Inhofe (R-Okla.), will be leaving her post this week.

U.S. EPA sought financial and other help from an organization tied to the oil industry to study pollution from ethanol and other fuels, according to documents obtained by a group pushing for lower fuel emissions.

Media mogul Ted Turner — who was the nation's largest private landowner in 2008 — tried to influence President Obama's pick for Interior secretary, hacked emails reveal.

A recent TV ad from the Humane Society Legislative Fund claims that Donald Trump and his advisers represent a threat to animals.

The co-chair of presidential candidate Hillary Clinton's transition team has come out against the $3.78 billion Dakota Access pipeline in a sign of how the contentious oil project might fare if the Democrat wins the White House.

Democratic presidential candidate Hillary Clinton's team used a $275 billion pitch to upgrade the nation's aging electric grid, roads, bridges and water systems as a lever for coaxing endorsements and softening relationships with trade unions still smarting from the Obama administration's rejection of the Keystone XL pipeline, according to hacked emails.

Earlier this year — before President Obama began a record-breaking streak of monument designations — environmentalists were worried about what they saw as a lull in the administration's interest.

Sam Clovis is the round man in suspenders who often appears as the face of Donald Trump's presidential campaign. Sometimes, though, the co-chairman of Donald J. Trump for President himself sounds like a candidate who shares just a little too much.

A former U.S. EPA employee has been indicted on charges of holding child pornography as well as stealing agency computer equipment and obstructing the investigation into his activities.

Following a flood of public feedback, U.S. EPA has sent the final slate of proposed changes to its regional haze regulations to the White House Office of Management and Budget for a standard review.

For months, two opposing camps have been working behind the scenes to lay the groundwork for vastly different presidential administrations.

The Supreme Court heard arguments today in a case that could determine whether a nominee for a vacant government post may serve temporarily in the job.

The 2006 cult classic "Snakes on a Plane" came to life Sunday when a venomous green viper emerged from the luggage rack on an Aeroméxico flight.

England's iconic white cliffs are currently eroding 10 times faster than over the last 7,000 years, according to a new study.

The government of Laos is pushing forward with a third hydroelectric dam on the Mekong River, in a move that has angered neighboring countries as well as environmental groups.

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