Several hundred protesters were arrested Sunday in Washington, D.C. after strapping themselves to the White House fence to protest the proposed Keystone XL oil pipeline.
The protesters were mostly college students who participated in a peaceful march that began at Georgetown University and ended outside the White House. They chanted "climate justice now" and carried signs such as "don't tarnish the earth" in their efforts to convince President Obama to reject the pipeline. They say it will contribute to global warming.
Police were waiting for them with buses and vans to speed the process. The demonstrators cheered as U.S. Park Police warned them that blocking the sidewalk or strapping themselves to the fence would lead to their arrest.
The proposed pipeline would carry oil from western Canada to the Texas Gulf Coast, passing through Nebraska.