While lawmakers debate indicative votes, they're having to battle a fairly significant distraction.
About a dozen climate protesters stripped down and pressed themselves against the glass of the viewing gallery that overlooks the Commons. It's an inventive way to make a point, and it's received the attention of several MPs.
The climate group Extinction Rebellion said in a tweet that they were responsible. (Warning: some readers may find the photographs explicit.)
John Bercow, the Speaker, has asked MPs to press on.