10/03/2011 04:13 pm ET Updated Dec 06, 2017

Kyra Sedgwick Joins List Of Keystone XL Pipeline Opponents (VIDEO)

Add Kyra Sedgwick to the list of celebrity activists who believe the proposed Keystone XL pipeline is a bad idea.

In this video from the Natural Resources Defense Council, "The Closer" actress says, "Just like the BP oil spill, one glitch in the tar sands pipeline could destroy our clean water sources, possibly forever."

She joins many other activists concerned about the safety of the pipeline. Actor Mark Ruffalo said in a Tar Sands Action video, “I’ve seen the kind of damage that out-of-control energy development can do to water and to communities near my own home ... All these problems are connected — we need to get off fossil fuels.”

Actress Daryl Hannah was arrested in August for protesting the pipeline outside of the White House, shouting “No to the Keystone pipeline," as she was handcuffed.

Archbishop Desmond Tutu, the Dalai Lama and seven other Nobel Peace Prize laureates have signed letters to both U.S. President Barack Obama and Canadian Prime Minister Stephen Harper urging them to stop the pipeline.

Residents of Nebraska, one of the states through which the pipeline would pass, recently expressed their fears over the pipeline's potential to contaminate groundwater.

HuffPost's Tom Zeller reports that dozens of recently released emails suggest a close relationship between State Department employees and a pipeline lobbyist.

Click here for more information about the fight against the Keystone XL pipeline.