Disobey Gravity

The Access Fund has a call to action outlining what you can do to help protect public lands (including many important climbing areas) during the shutdown:

Rock and Ice: Action Alert: Help Public Lands During the Government Shutdown

ETA: Also Outside's got an interesting piece on the situation in Joshua Tree and the mystery of why the parks are being kept open:

Outside Online: "It’s Bizarro Land": Joshua Tree Will Remain Open