UK landmarks go dark for Earth Hour
Landmarks across the UK have gone dark for Earth Hour, with lights switched off from 8.30pm for an hour, as part of a global effort to raise awareness about climate change.
Before and after: Times Square in the dark
One Times Square switched off its iconic lights, to mark Earth Hour this evening. Landmarks across the globe turned off their lights at 8.30pm local time in a show of support for renewable energy.
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World landmarks switch off lights for Earth Hour
Cities across the world switched off their lights to mark this year's 'Earth Hour' movement on Saturday.
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UK landmarks go dark for Earth Hour
Big Ben, the Houses of Parliament and UK landmarks went dark for an hour tonight as the UK took part in Earth Hour.
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London prepares for Earth Hour