The combo photo taken on March 24, 2018 shows the Margaret Bridge and the Hungarian Parliament with light off (down) and on during the Earth Hour event in Budapest, Hungary. (Xinhua/Attila Volgyi)
Celebration of annual Earth Hour campaign held across world
Source: Xinhua| 2018-03-25 07:58:43|Editor: Jiaxin
KEY WORDS:Earth Hour campaign
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