Here's Daryl Hannah preparing to be arrested at the Keystone XL protests — she's writing a contact number, probably for her lawyer, on her arm so she doesn't forget it. And that's a nice hand-lettered sign! Hannah was arrested today outside the White House gates, and I originally was going to lead with that video and title the post "Daryl Hannah in handcuffs" but then I felt dirty about it. Here's the video, though!

Grist thanks its sponsors. Become one.

It's been a big week for celebrities at the protest — NASA scientist James Hansen was arrested yesterday.