"Earth Hour"

Tonight, Saturday March 29, there is a movement called "Earth Hour." From 8 to 9pm tonight (in your local time zone), turn your lights out to help raise awareness of energy conservation. To me this's a win-win situation - by 8pm it's dark out. If everyone really does turn their lights out, it'll make the night skies that much darker (though yes, I know streetlights won't be out) and that much better for observing! T$ points out that it isn't going to be all that effective since we can still leave on computers and TVs - which are probably a bigger power drain for most modern families. But it's better than nothing.