Don't forget that Earth Hour is tonight (Actually it is already "tonight" in time zones well east of the Pacific - so it has already begun). To participate just dim or extinguish your necessary lights from 8:30 - 9:30 p.m. It is that easy.
You can follow Earth Hour on Twitter as the event moves around the globe.
Tonight is also the last night to make observations for Globe at Night.
Saturday, March 28, 2009
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