Landmarks around world turn off lights for Earth Hour

A combination image of two photographs shows a general view of the Marina Bay Sands hotel and resort lit up (top) and after the lights were turned off (bottom) during the Earth Hour environmental campaign in Singapore, March 30, 2019. Earth Hour, organised by the WWF, will see millions of people across 180 countries turn off their lights at 8:30 pm local time to highlight energy use and the need for conservation. [Photo: AFP]