Climate change demonstrators gather in Washington, D.C. (11 images)

Demonstrators with climate change activist group Extinction Rebellion scale the exterior of the Chamber of Commerce building and release colored smoke during a protest in Washington, D.C., on Thursday. Photo by Sarah Silbiger/UPI

Demonstrators with climate change activist group Extinction Rebellion scale the exterior of the Chamber of Commerce building. Photo by Sarah Silbiger/UPI

Climate change protesters are seen inside a police cordon outside the White House on Wednesday. Photo by Sarah Silbiger/UPI

"Expect Us" is written in graffiti on the Andrew Jackson statue outside the White House to raise attention to Line 3, an oil pipeline that runs through Indigenous lands. Photo by Sarah Silbiger/UPI