Earth Hour tomorrow night! Don't forget to turn off the lights. Whether you're a "global warming beliver" or not, saving energy is good. Technical science aside, I think we can all at least agree that fossil fuels are a finite resources, and after the recent nucleur plant disasters in Japan, and the fairly slow commertialsation and accessability of wind and solar energy generation, saving is the best option for now. Find out more about the movement here.
Images: Earth Hour