http://www.alternativechannel.tv/communication-durable/users/WWF-living-planet/1472 Alternative Channel | WWF for a living planet Latest Videos en Copyright: (C) Alternative Channel., http://www.alternativechannel.tv http://www.alternativechannel.tv/alternat-docs/images/en/mailing-logo.jpg http://www.alternativechannel.tv http://www.alternativechannel.tv/communication-durable/videos/WWF-living-planet/Earth-Hour-2009/1946/ 1946 In 2007, 2.2 million people took part in the world's first Earth Hour in Sydney Australia. Just one year later, <strong>50 million people in 370 cities and towns</strong>, in more than 35 countries worldwide <strong>switched off their lights for Earth Hour</strong>.<br><br>Earth Hour 2009 aims to reach more than one billion people in 1000 cities around the world, inviting communities, business and governments to switch off lights for one hour at<strong> 8:30pm on Saturday March 28 </strong>and sending a powerful global message that <strong>we care enough about climate change to take action</strong>.<br><br> Visit<a href="http://www.earthhour.org/" title=""> Earthhour.org</a> for more info.<br>