Earth Hour is an intertional event which takes place in March every year.It is held on 28 March 2009.I think the peoples organised this because the peoples must save electricity for just 1 hour.They have to switch off every single one of the light bulb and they must do something within one hour.I organised to go shopping or just sleep until the one hour is over.The other problens Earth is facing is global warming and peoples lost jobs.I think that if the people built a bigger wall,they water will wouldn't flow in and make a flood.

dinghuijian
7:55 AM

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