COLUMBUS, Neb. (AP) — A Nebraska utility says the new route for a proposed oil pipeline that would carry Canadian crude oil through the state will d...

If the southern leg of TransCanada's pipeline is allowed to be completed, the fuse to the tar sands "carbon bomb" will be lit.

President Obama will soon have to decide whether he will be the "all of the above" president or the "respond to climate change" president.

On top of its looming decision on the Keystone XL, it's likely that the Obama administration will make a final decision on whether or not to greenlight shale gas exports sometime in 2013. The policy agenda is about to heat up in the energy and environment policy arenas inside the Beltway.

For opponents, rejection of the pipeline would represent a vital and historic break with the era of fossil fuels. But for supporters of the pipeline, denying the permit would run counter to Obama's stated commitment to job creation and an "all of the above" energy policy that includes continued development of oil, gas and even coal resources.

The minute we see President Obama use the powers of his presidency to end this immoral assault on America is the day we'll know he is ready to deal with a climate spiraling out of control on his watch.

Over the past months, the youth climate movement and its allies have been raising the stakes. In its first month alone, the fossil fuel divestment movement reached 192 campuses, and even spread to the city of Seattle. But we're not going to stop there.

This is a time for climate leadership. So, instead of a shoddy Keystone XL environmental review, the first major climate action for this Administration's second term should be to set limits on climate change pollution from power plants. That is the kind of action that makes sense.

CALGARY, Alberta, Dec 17 (Reuters) - The prospect of a new U.S. secretary of state favoring tougher carbon policy should not worsen the odds of the ...

In an interview with HuffPost Live Thursday, former U.S. Army Brigadier General Steven M. Anderson spoke out against the building of the Keystone XL p...

While TransCanada has asked for a rubber stamp process than only evaluates a minor route change in Nebraska, concerned Americans and the environment community have made their expectations of the environmental review process clear.

HOUSTON (AP) — TransCanada can resume oil pipeline work on a private Texas property for now, a judge said Thursday, at least until a hearing next we...

TransCanada doesn't seem to understand that brutalizing and bullying great-grandmothers is not an American value.

Conflict-of-interest concerns have plagued the Keystone project from the beginning. Now it turns out that HDR, the engineering and consulting firm hired by Nebraska to conduct an environmental impact assessment of the project, has a cozy relationship with the company it was supposed to evaluate.

Susan Rice, rumored to be a top candidate to replace Hillary Clinton as secretary of state, has received mixed reviews from environmentalists. The...

HOUSTON (AP) — A Texas landowner is asking a court to overturn a permit granted by a state agency to a Canadian company to build a pipeline meant to...

Bill McKibben calls it the fuse to the biggest carbon bomb on the planet. James Hanson says that if tapped, the Tar Sands spell game over for any hope...

The president will soon have a chance to show his climate mettle by denying TransCanada a permit to build the northern leg of its Keystone XL tar sands pipeline. But this is not Obama's Keystone test.

KANSAS CITY, Mo. -- Oil resumed flowing Monday afternoon through the Keystone oil pipeline that carries about 590,000 barrels of crude per day from Ca...

In case you missed it Tuesday night, both candidates doubled down on their support for Keystone XL during the second presidential debate, with Governo...

What does that mean for tar sands pipelines like Keystone XL and Northern Gateway?

Watching from a distance is hard. I'm on the move setting up our big roadshow assault on the fossil fuel industry, but the real action is in Texas, where a growing number of blockaders are trying to shut down work on the southern section of the Keystone Pipeline.

The fact that tar sands pipelines are not in our national interest becomes clearer by the day.