St Petersburg plunged into darkness

A child lights a candle in St Petersburg
St Petersburg celebrated Earth Hour by turning out the lights of Palace Square. Credit: AP Photo/Dmitry Lovetsky

St Petersburg marked earth hour by turning out the lights of Palace Square. Climate change protesters held a candle lit vigil at 8.30pm local time.

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Lights go out for Earth Hour

Hundred's of landmarks around the world will switch off their lights at 8.30pm local time as part of a global effort to shine a spotlight on climate change