This article is copyright the Nation, where it originally appeared, and is reprinted here with their permission.

Here we go again. With President Obama on the cusp of a decision on whether to approve the Keystone XL tar sands pipeline, on March 2, hundreds of students and young people are expected to risk arrest in an act of civil disobedience at the White House to pressure President Obama to reject the project.

The sit-in is expected to be the largest act of civil disobedience by young people in the recent history of the environmental movement and it will be led by just the demographic that helped propel Obama to the presidency. The protest, known as “XL Dissent,” is meant to send a clear signal to President Obama that the base that helped elect him sees Keystone XL as a decision that will define his entire legacy.

“Obama was the first president I voted for, and I want real climate action and a rejection of the Keystone XL pipeline,” said Nick Stracco, a senior at Tulane University. “The people that voted him into office have made it absolutely clear what we want, and that’s to reject Keystone XL.”

The tar sands, also known as the oil sands, are one of the largest remaining deposits of oil in the world, and efforts to extract the resource from a mix of clay and other materials underneath Canada’s Boreal forest have created the biggest, and by the accounts of numerous scientists and environmental groups, one of the most environmentally devastating energy projects on earth. For details and background, the Natural Resources Defense Council has compiled an extensive document.

The Keystone XL fight has become an iconic issue for environmentally minded young people across the country, many of whom are involved in local campaigns to help stop the pipeline or the broader fossil fuel divestment campaign, which has spread to over 300 universities across the United States.

As 350.org co-founder Bill McKibben aptly puts it:

As the fight to stop KXL enters its final stages, it’s truly inspiring to see young people at the forefront. This pipeline is scheduled to last 40 years—right through the prime of their lives. President Obama needs to look them in the face.

The “XL Dissent” protest on March 2 will begin with a march from Georgetown University to the White House. After a rally in Lafayette Square, hundreds of students and young people are expected to risk arrest at the White House fence. The day before the protest, students will meet for a nonviolent direct action training and fossil fuel divestment conference.

Get more info and sign up for the march; find out exactly what’s being planned and see how you can help the cause, whether you can be in DC on March 2 or not.