Queen Charlotte is celebrating Earth Hour this year.Queen Charlotte councillors agreed March 21 to participate in the annual global event. Earth Hour is designed to raise awareness about climate change and highlight individual communities' energy saving actions. From 8:30 pm to 9:30 pm on March 26, residents are asked to turn off their lights.During Earth Hour 2010, 87 communities in BC and 370 cities and towns in more than 35 countries switched off unnecessary lights and equipment to save energy and combat climate change. Last year British Columbians saved 800 GWh of electricity, enough to power 75,000 homes through energy conservation, according to BC Hydro.