Earth hour in hanoi, Earth hour in Viet Nam, Earth hour 2012 in hanoi, Earth hour 2012 in Viet Nam

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The Earth Hour 2012 will begin at 8.30 to 9.30 on Saturday 31 March. The largest volunteer action of human will begin by the symbolic action: turn off the lights and unnecessary electricity applicants in one hour, and will be continued by loving earth actions during the next 365 days. This year, the campaign would come along with the slogan "I will if you will".

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