Earth Hour poster

CFLs everywhere will go dark Saturday night for the global Earth Hour event scheduled for 8:30 p.m. local time (wherever your locality happens to be). The aim of the annual effort — brought to us by the folks who invented Outback Steakhouse — is to make a “statement of concern about climate change,” rather than, say, save a few watts.

Hollywood sets, national landmarks, and more than 2,000 cities worldwide have pledged to go dark to help bring solutions to light. (What a turn-off!) For Earth Hour to make a difference, though, there’s gotta be big participation, and this year, it may finally be getting the publicity it needs.

Below, Incredible Hulk Ed Norton and 90s crooner Alanis Morissette talk it up on Larry King:

And just for fun, a Sarah Silverman spoof about “flicking the lights off“: