More than 100 people gathered on Parliament Hill Saturday night for Earth Hour. For the third year, Ottawa participated in the event, which was held between 8:30 and 9:30 p.m. and encourages residents to shut off all non-essential lighting to reduce electrical consumption and raise awareness about environmental conservation.

Once again, Ottawa has achieved a six per cent reduction.

"Earth Hour 2010 was a global call to stand up, show leadership and demonstrate how a simple act conducted on a collective basis can make a difference," said Mayor Larry O‚Brien. "This year, we increased our effort to reach out to young people in the community and I have no doubt that it was this extra effort that helped contribute to the success of Earth Hour 2010."

Ottawa was one of the first cities in Canada and the world to participate in Earth Hour. This year, Ottawa joined 4,000 other cities in 88 countries around the globe in the growing initiative.

Earth Hour is a global campaign, initiated by the World Wildlife Fund in Sydney, Australia in 2007.