An activist holds up a sign during a sit-in and protest against the Keystone XL pipeline outside the U.S. State Department August 12, 2013 in...
People walk past Indian Teepees that are on the National Mall as part of a protest against the Keystone pipeline April 23, 2014 in Washington, DC. As...
Dressed as a Polar Bear climate control activist Catherine Kilduff from the Center for Biological Diversity holds a victory sign after after...
President Barack Obama, flanked by U.S. Secretary of State John Kerry , announces his decision to reject the Keystone XL pipeline proposal, at the...
President Barack Obama, flanked by U.S. Secretary of State John Kerry , announces his decision to reject the Keystone XL pipeline proposal, at the...
Keystone pipeline protesters Wizipan Little Elk of the Rosebud Sioux Tribe and Nebraska farmer Art Tanderup hold a sign protesting the pipeline while...
Casey Camp of the Ponca Nation shakes hands with Piscataway Indian Nation Chief Billy Redwing Tayac during a traditional opening ceremony to begin a...
Members of the Cowboy and Indian Alliance, including Native Americans, farmers and ranchers from across the United States, ride horseback down...
Atmospheric physicist and Columbia University Earth Institute adjunct professor James Hansen testifies before the Senate Foreign Relations Committee...
Sen. Lindsey Graham rushes to the Senate chamber to vote on an attempt to override U.S. President Barack Obama's veto of the Keystone XL Pipeline...
Speaker of the House John Boehner listens during a signing ceremony of the Keystone XL Pipeline Approval Act in the Rayburn Room of the Capitol...
Speaker of the House John Boehner holds his weekly news conference at the U.S. Capitol February 5, 2015 in Washington, DC. Boehner announced that...
Speaker of the House John Boehner holds his weekly news conference at the U.S. Capitol February 5, 2015 in Washington, DC. Boehner announced that...
Sen. John Cornyn speaks to reporters outside the Senate chamber following a luncheon for Republican members of the Senate January 27, 2015 in...
Sen. Edward Markey speaks as Sen. Al Franken and Sen. Charles Schumer listen during a news conference January 20, 2015 on Capitol Hill in Washington,...
Senate Majority Leader Mitch McConnell speaks to the media after the Republican policy luncheon at the U.S. Capitol, January 7, 2015 in Washington,...
House Minority Leader Nancy Pelosi arrives for the first House Democratic caucus meeting of the 114th Congress in the U.S. Capitol Visitors Center...
Sen. Mary Landrieu is accompanied by Sen. Heidi Heitkamp after the Senate voted on the Keystone XL Pipeline Bill at the U.S. Capitol on November 18,...
Senate Minority Leader Mitch McConnell answers questions with members of the Republican senate leadership following the weekly Republican policy...
Speaker of the House John Boehner holds a news conference after the weekly House Republican caucus meeting at the U.S. Capitol November 18, 2014 in...
Speaker of the House John Boehner talks to reporters after the weekly House Republican caucus meeting at the U.S. Capitol November 18, 2014 in...
House Speaker John Boehner is escorted by his security detail as he walks to the House chamber before a vote at the US Capitol, November 14, 2014 in...
The Valero refinery works glow in the dusk light in Port Arthur, Texas. Port Arthur, Texas is the end of the line for oil that would travel through...
Speaker of the House John Boehner holds a news conference with the newly-elected members of the House GOP leadership at the U.S. Capitol November 13,...
Ogalala Sioux Tribal President Bryan Brewer speaks to Willie Nelson and Neil Young during a ceremony where they were presented with decorated buffalo...
Rosebud Sioux Tribal President Cyril Scott, Willie Nelson, Neil Young, Ogalala Sioux Tribal President Bryan Brewer listen as Casey Camp speaks during...
Willie Nelson is honored during a ceremony where he and Neil Young were presented with decorated buffalo hides before the Harvest The Hope Concert in...
Neil Young is honored during a ceremony where he and Willie Nelson were presented with decorated buffalo hides before the Harvest The Hope Concert in...
Willie Nelson and Neil Young are honored during a ceremony where they were presented with decorated buffalo hides before the Harvest The Hope Concert...
President Barack Obama salutes a Marine guard while departing from Marine One as he returns to the White House, after speaking at the Amazon...
Environmentalists stage a protest to coincide with a fundraising event by U.S. President Barack Obama on May 13, 2013 in New York City. Hundreds of...
Demonstrators hold signs as they protest near the site of a fundraiser on April 3, 2013 in San Francisco, California. Hundreds of protesters staged a...
Bobby Kennedy Jr. Protests against Keystone XL Pipeline at Lafayette Park on February 13, 2013 in Washington, DC.
Daryl Hannah is handcuffed and arrested during the Keystone XL Pipeline Protest at Lafayette Park on February 13, 2013 in Washington, DC.
Daryl Hannah is handcuffed and arrested during the Keystone XL Pipeline Protest at Lafayette Park on February 13, 2013 in Washington, DC.
President Barack Obama speaks at the southern site of the Keystone XL pipeline on March 22, 2012 in Cushing, Oklahoma. Obama is pressing federal...
House Minority Leader Rep. Nancy Pelosi speaks during a news conference January 18, 2012 on Capitol Hill in Washington, DC. Pelosi discussed on...
Speaker of the House John Boehner and Rep. Jeb Hensarling listen to House Majority Leader Eric Cantor during a press briefingat the U.S. Capitol...
Speaker of the House John Boehner holds a press briefing at the U.S. Capitol January 18, 2012 in Washington, DC. Boehner and House Republican leaders...
Sen. Lisa Murkowski speaks as U.S. Sen. Richard Lugar and U.S. Sen. James Inhofe listen during a news conference November 30, 2011 on Capitol Hill in...
Train cars sit next to miles of unused pipe , prepared for the proposed Keystone XL pipeline, on October 14, 2014 outside Gascoyne, North Dakota.
Miles of unused pipe, prepared for the proposed Keystone XL pipeline, sit in a lot on October 14, 2014 outside Gascoyne, North Dakota.
The White River weaves through the landscape near where the proposed Keystone XL pipeline would pass on October 13, 2014 south of Presho, South...
Miles of unused pipe, prepared for the proposed Keystone XL pipeline, sit in a lot on October 14, 2014 outside Gascoyne, North Dakota.
Pipe is stacked at the southern site of the Keystone XL pipeline on March 22, 2012 in Cushing, Oklahoma. U.S. President Barack Obama is pressing...
Train yard near the route of the Keystone XL pipeline in Oyen, Alberta, Canada, on Wednesday, Jan. 27, 2021. U.S. President Joe Biden revoked the...
Demonstrators rally downtown before marching to Trump Tower while protesting the construction of the Dakota Access pipeline on February 4, 2017 in...
Miles of unused pipe, prepared for the proposed Keystone XL pipeline, sit in a lot on October 14, 2014 outside Gascoyne, North Dakota.
Creek weaves through the rolling hills of South Dakota near the land where the proposed Keystone XL pipeline would pass on October 13, 2014 south of...
The White River weaves through the landscape near where the proposed Keystone XL pipeline would pass on October 13, 2014 south of Presho, South...
Warning sign alerting people to an existing gas pipeline is seen near the "Clean Energy Barn," which was built directly in the path of the proposed...
Pipes for the Keystone XL pipeline stacked in a yard near Oyen, Alberta, Canada, on Tuesday, Jan. 26, 2021. U.S. President Joe Biden revoked the...
Pipes for the Keystone XL pipeline stacked in a yard near Oyen, Alberta, Canada, on Tuesday, Jan. 26, 2021. U.S. President Joe Biden revoked the...
Pipes for the Keystone XL pipeline stacked in a yard near Oyen, Alberta, Canada, on Tuesday, Jan. 26, 2021. U.S. President Joe Biden revoked the...
Machinery along a right of way for the Keystone XL pipeline near Oyen, Alberta, Canada, on Wednesday, Jan. 27, 2021. U.S. President Joe Biden...
Crews work on a right of way for the Keystone XL pipeline near Oyen, Alberta, Canada, on Wednesday, Jan. 27, 2021. U.S. President Joe Biden...
Pipes for the Keystone XL pipeline stacked in a yard near Oyen, Alberta, Canada, on Tuesday, Jan. 26, 2021. U.S. President Joe Biden revoked the...
Pipes for the Keystone XL pipeline stacked in a yard near Oyen, Alberta, Canada, on Tuesday, Jan. 26, 2021. U.S. President Joe Biden revoked the...
Demonstrators rally downtown before marching to Trump Tower while protesting the construction of the Dakota Access pipeline on February 4, 2017 in...
Bryan Templeton is facilities manager at the Keystone facility. The pipes at left are literally the ones that will connect the existing Keystone...
