Environmental activists lay down, chanting slogans to urge people not to fly, in a hall at Zurich Airport, Switzerland on July 13, 2019. Dozens of climate activists staged a peaceful protest at Zurich Airport on Saturday, denouncing the negative impact of air travel on the environment. They lay on the ground briefly and then walked along the shopping area distributing flyers. (Photo by Arnd Wiegmann/Reuters)
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