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Planet goes dark for Earth Hour

People across the world switched off their lights last night in support of a global effort to tackle climate change.

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Astronaut tweets pictures of cities prior to Earth Hour

Canadian astronaut Commander Chris Hadfield, currently on board the International Space Station, has been tweeting images of major cities prior to Earth Hour.

The view of New York City from the International Space Station. Credit: Twitter/@Cmdr_Hadfield

He wrote, "New York City, lit up like a bulb. The Statue of Liberty is clearly visible in the night from above".

The picture shows Detroit and Windsor, where Michigan meets Ontario. Credit: Twitter/@Cmdr_Hadfield

The commander also highlighted that "spiderwebs of light expanding out from the dark river border" could be seen of Detroit and Windsor.

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