The last Saturday in March is time to celebrate Earth Hour.
Every year hundreds of millions of people around the world in more than 7,000 cities in over 190 countries take part by switching off for 60 minutes as a symbolic gesture of solidarity to show they care about our planet's future. It started in 2007 in Sydney to a lot of fanfare as a way to draw attention to Climate Change. Now I feel it doesn't have the same 'noise' associated with it, but it is a good excuse to turn off all the lights and 'feel' the darkness.
