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.

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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“:

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