Earth Hour 2008 is tomorrow evening at 8:00pm (local time no matter where you are in the world). We just came across a Time article that takes on the criticism that turning off the lights for an hour doesn't really do much. The point is that it's a symbolic act, and symbolism matters hugely in politics, and climate change is first and foremost a political problem.
Here, we will host a dinner of mostly local food - it's really hard to get truly local food in March in Wisconsin - we'll substitute organic food for most of what we couldn't get locally. We'll have about 18 people at the house enjoying good food, wine, and company (hopefully!).
What are you doing for earth hour?