One of the world's largest campaigns designed to make a statement to world leaders about Climate Change is Earth Hour. The campaign has grown in size each year as more and more countries participate in a 24 hour protest around the globe. To see just how big Earth Hour is, check out this video:
Click here to listen to the HDC chat with Jonathan Larkin of WW about Earth Hour.
Earth Hour happens at 830pm local time on Saturday, 27th March, 2010.
Find out more about Earth Hour at http://www.earthhour.org/