This Saturday, March 28th, at 8:30pm local time all around the world, individuals, companies, historical landmarks, towns and countries have committed to turning off the lights for one hour to highlight the threat of climate change. According to Earthhour.org‘s Facebook page, Sydney turned off the lights in 2007 and cut their energy usage by 10%; in 2008 the word had spread so that more than 277 cities had turned off the lights; now in ’09, millions have signed up to turn off their lights in over 538 cities in 78 countries. Signing up and committing to turning off your lights is an easy way to support the cause and help get the word out about the importance of conservation. Plus, what better activity to engage in with the lights off than a little au naturale loving, whether alone or with a special friend? Just be sure you use birth control to help keep overpopulation in check.