Will You Turn Out Your Lights?

Earth Hour 2008 - Sydney, Australia cc-by- Eri...

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In half an hour (my local time), Earth Hour begins. All across the world today, at 8:30 pm local time, the lights are going out to draw attention to human resource use and the impact it has on our planet.

Some people think it is a useless demonstration, others think that it makes a real point and a real difference?

What do you think?

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