California's governor and top attorney are suing the Bureau of Land Management over a plan to develop oil and gas on 1 million acres of federal land in the state.

The Trump administration heralded planned changes to rules surrounding the National Environmental Policy Act as an end to drawn-out legal brawls challenging high-profile energy and infrastructure projects. But experts say that may not happen.

Conservation groups yesterday sued the Bureau of Land Management over what they contend is the agency's continued failure to fully account for climate change risks associated with oil and gas leasing.

A federal judge in Colorado today struck down the Interior Department's plan to expand the West Elk mine in North Fork Valley.

A trio of conservation groups is suing the Bureau of Land Management for not providing estimates of the climate impacts of 130 oil and gas leases on public lands in Utah.

Environmentalists are taking a climate change argument that worked in Wyoming to Nevada, where they hope to shut down a recently approved oil well.

MONTEREY, Calif. — The Trump administration may have walked back requirements for federal climate reviews, but the Interior Department can still expect courtroom scrutiny if it neglects its duties under the National Environmental Policy Act, a former agency official said this month.

New White House rules on how federal regulators should consider greenhouse gas emissions could leave the government at risk of unfavorable courtroom rulings.

Government officials failed to fully consider the climate impacts of oil and gas development in Colorado, a federal court ruled yesterday.

A federal court last night struck down climate reviews for a series of Obama-era oil and gas lease sales, a significant win for environmental groups concerned about the impacts of burning fossil fuels.

A Colorado district court judge last night deferred a final ruling in a key case on climate impacts from oil and gas production on public lands.

A federal court rebuked the Bureau of Land Management yesterday for failing to consider certain climate impacts of oil and gas development on public lands in New Mexico.

Environmentalists notched an important legal win last week when a district court called on the federal government to boost its climate analysis for fossil fuel development in the West.

A major court decision dressing down the federal government for "irrational" consideration of the climate impacts of coal leasing stands to reverberate throughout the Trump administration.

A federal judge this week halted the expansion of a coal mine in Montana, finding that regulators failed to adequately assess the project's climate impacts.