Civil rights activist Julian Bond (top row, 3rd L), Sierra Club Executive Director Michael Brune (top row, 4th L), and activists opposed to the Keystone XL tar sands pipeline project tie themselves to the White House fence during an environmental protest in Washington, February 13, 2013. (REUTERS/Jonathan Ernst)

WASHINGTON - Darryl Hannah and Robert Redford aren't going to like this.

A new poll shows nearly seven in 10 Americans now support the $7-billion Keystone XL pipeline.

And a majority of Americans - 51% - "strongly support" building the project.

The Harris poll, released Wednesday, was conducted for the American Petroleum Institute.