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This picture taken on July 24, 2018 shows a worker lifting compressed cardboard out of an industrial compactor at a recycling depot in the Wan Chai district of Hong Kong - Cardboard collectors pick up discarded packing boxes from shops, markets and residential buildings, selling them for a few dollars to recycling depots, where cardboard is more valuable than plastic. The depots then ship it abroad -- up to 95 percent of it to mainland China in 2016, according to local authorities -- as Hong Kong has no recycling plants of its own to convert it into usable materials. (Photo by ISAAC LAWRENCE / AFP) / TO GO WITH HongKong-social-environment-elderly-cardboard-collector, FEATURE by Yan ZHAO (Photo credit should read ISAAC LAWRENCE/AFP/Getty Images)

This picture taken on July 24, 2018 shows a worker lifting compressed cardboard out of an industrial compactor at a recycling depot in the Wan Chai district of Hong Kong - Cardboard collectors pick up discarded packing boxes from shops, markets and residential buildings, selling them for a few dollars to recycling depots, where cardboard is more valuable than plastic. The depots then ship it abroad -- up to 95 percent of it to mainland China in 2016, according to local authorities -- as Hong Kong has no recycling plants of its own to convert it into usable materials. (Photo by ISAAC LAWRENCE / AFP) / TO GO WITH HongKong-social-environment-elderly-cardboard-collector, FEATURE by Yan ZHAO (Photo credit should read ISAAC LAWRENCE/AFP/Getty Images)
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AFP ISAAC LAWRENCE