In 2010,128 countreis participated in earth hour
I took part in earth hour and hope it saved the earth did you take part????
in 2010, 126 countries participated
In 2011, Earth Hour occurs at 8:30pm on Saturday 26 March.
It conserves electricity. For one hour, people turn off all unnecessary lighting in their homes and offices. This year's event occurred on March 27, from 8:30 to 9:30. Approximately one billion people participated.
Rain Falls from Earth Surviving Cambodia's Darkest Hour - 2011 was released on: USA: 30 November 2011
Earth hour starts at 8:30pm at your local time and finishes at 9:30pm your local time. In 2011, Earth Hour is on 26 March.
There are over 1 million people who partisapat in earth hour per year
Earth Hour 2011 estimated to have saved about 2,100 megawatt-hours of electricity worldwide, equivalent to the annual electricity consumption of a small city.
Because they feel like it...
Because People want to save energy
march 26 2011 that's Saturday at 8:30 to 9:30p.m.