I thought someone might have already started a thread on this topic, but since I couldn't find anything, I figured I'd begin one here.

Will you be participating in Earth Hour next week?  (It's on Saturday, March 29, from 8:00 to 9:00 p.m. local time worldwide.)  If so, what do you plan to do during the hour?  What do you think the effects of this event will be?  What do you think we (citizens of Earth) should do as a follow-up?

http://www.earthhour.org/