© Licensed to London News Pictures. 19/03/2016. London, UK. Tower Bridge and City Hall in London seen with the lights turned on shortly before the start of Earth Hour 2016. Landmarks around the world are switching their lights off for Earth Hour this evening, a global switch-off event aimed at protecting the planet and highlighting the effects of climate change. This year marks the 10th annual Earth Hour. Photo credit : Vickie Flores/LNP
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