In Pics: Lights out! World cities go dark to mark Earth Hour 2018
People light candles after the building lights were switched off for the Earth Hour environmental campaign in Dubai.
A general view of giant concrete tree-like structures called Supertrees after the lights are dimmed to mark Earth Hour, at the Gardens by the Bay in Singapore March 24, 2018.
A view of Akshardham temple during the Earth Hour in New Delhi, on Saturday.
The India Gate war memorial is pictured after the lights were turned off for Earth Hour in New Delhi.
Sydney Harbour Bridge and the Opera House are plunged into darkness for the Earth Hour environmental campaign.
light lamps form the number 60, representing the 60 minutes of Earth Hour, during Earth Hour outside a mall in Bacoor, Cavite city, south of Manila, Philippines.
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