The combined photo shows the China Central Television Tower before (above) and after tuning off lights during the Earth Hour campaign in Beijing, capital of China, March 25, 2017. (Xinhua/Tao Xiyi)
The combined photo shows the China Central Television Tower before (above) and after tuning off lights during the Earth Hour campaign in Beijing, capital of China, March 25, 2017. (Xinhua/Tao Xiyi)