Earth Hour, as we've discussed, is a time when many cities around the world will be going dark -- that is turning off lights and other energy-consuming goodies -- in honor of the planet. Or, you know, as an apology to the planet. Whichever.
Point is, a few celebrities are getting in on promoting Earth Hour now.
Here, hot off the presses, are two promo videos featuring Janeane Garofalo and Alanis Morissette, who talk very soberly about the big turn-off.
Notice anything about the Alanis video? Yeah, it's set on a plane. Isn't it ironic?