South Dakota warns it could revoke Keystone Pipeline permit over oil spill.

South Dakota regulators said they could revoke TransCanada's permit for the 7-year-old Keystone Pipeline if an investigation into a large oil spill discovered last...

Keystone XL pipeline: TransCanada weighing options after Nebraska regulators OK pipeline, but not preferred...

Nebraska regulators have approved TransCanada’s controversial Keystone XL pipeline, but not its preferred route through this state — raising questions about whether the company...

The Keystone XL pipeline wins a battle, but faces a new war.

After a nearly decade-long fight over its construction—which grew to include three states, two provinces, several indigenous tribes, tens of thousands of activists, and...

Nebraska approves Keystone XL pipeline as opponents face criminalization of protests.

Nebraska’s Public Service Commission approved the Keystone XL pipeline Monday, eliminating a major regulatory hurdle to construction of a project that galvanized people across the...

Keystone XL pipeline gets Nebraska’s approval, clearing a key hurdle in 9-year effort and...

Nebraska regulators voted on Monday, Nov. 20 to approve TransCanada Corp's Keystone XL pipeline route through the state, lifting the last big regulatory obstacle...

Nebraska regulators approve alternative route for Keystone XL pipeline.

AdvertisementLINCOLN, Neb. — The nearly decade-long battle over Keystone XL has come...

Congress moves to 'drill, baby, drill' in Alaska's ANWR. Here's what you should know.

CLOSE Republicans wanted to drill in an-oil rich area of an Alaskan refuge for decades, and the political stars are perfectly aligned for that to...

Climate talks close with Trump administration on one track, world on another.

German Chancellor Angela Merkel and French President Emmanuel Macron attend the COP 23 United Nations Climate Change Conference on Nov. 15, 2017 in...

UN climate talks draw to a close as US holds firm on fossil fuels.

UN negotiations on implementing the Paris climate change agreement wrapped up on Friday after two weeks of talks that were slowed down by the...

Closing the climate talks, 'rays of light.'

The 23rd annual "Conference of Parties" (or COP23, in UN-speak) closed Friday with two key messages: The 195 countries signing the Paris Agreement (yes, that...

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