On Saturday, more than 70 activists, including environmental advocate Bill McKibben, were arrested outside of the White House for protesting the Keystone XL pipeline. The hotly contested pipeline, which if approved by the Obama administration would carry oil from the tar sands of Alberta, Canada to the Gulf of Mexico, would be disastrous for ecosystems from Canada all the way through America’s heartland to the waters of the Gulf.

In this video by On The Earth Productions and The Nation, Bold Nebraska‘s Jane Kleeb explains the potentially devastating impact the pipeline could have if it is approved. For more on the pipeline and the campaign to make sure it is not approved, read George Zornick’s post on this weekend’s actions in front of the White House.