Seen various places, but most recently at The Lead: Many people around the world are planning on observing an hour of “darkness” tomorrow night as a way of participating in a global earth hour. The event was created by the World Wildlife Fund in 2007.From the Earth Hour Website: “Earth Hour was created by WWF in Sydney, Australia in 2007, and in one year has grown from an event in one city to a global movement. In 2008, millions of people, businesses, governments and civic organizations in nearly 200 cities around the globe will turn out for Earth Hour. More…