Global landmarks go dark for Earth Hour

The UN headquarters in New York, the pyramids of Egypt and Rio's Christ the Redeemer statue were among top world monuments plunged into darkness for an hour Saturday to put the spotlight on climate change and its impact on ...

Landmarks to go dark for extinction awareness

Global landmarks from the Sydney Opera House to Dubai's Burj Khalifa are set to dim their lights on Saturday to raise awareness about energy use and our planet's vanishing biodiversity.

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