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when is earth hour 2011

Earth Hour 2011 Video Round Up

by John G Johnston on 03/27/2011

When Is Earth Hour 2011? What Is Earth Hour? And What’s The Point?

by John G Johnston on 03/25/2011

Flick Your Twitter Lights Off For Earth Hour With This Twitter App

by John G Johnston on 03/24/2011

Earth Hour 2011: Going Beyond The Hour [Animated Video]

by John G Johnston on 02/16/2011