(AP) — Nebraska opponents of the Keystone XL pipeline are planning to use rocking chairs in an effort to build support for their cause.

A group calling itself the Grandmothers’ Apple Pie Brigade unveiled a campaign to stage rocking-chair sit-ins in public places to protest the project, and to raise awareness of local environmental issues. Opponents are also planning to launch a website,www.applepiebrigade.org , with guidelines for sit-ins in parks, public squares, and other venues.

Opponents are urging President Barack Obama to reject a federal permit for the project, which would carry oil from Canada to Texas Gulf Coast refineries.

Pipeline developer TransCanada says the project has undergone numerous state and federal reviews, and will be built to safety standards that exceed federal requirements.