TOPSHOT - Recyclers are seen scouring Richmond sanitary landfill site for material on 2 June 2018. Plastic waste remains a challenging waste management issue due to its non-biodegrable nature, if not managed properly plastic end up as litter polluting water ways, wetlands and storm drains causing flash flooding around Zimbabwe's cities and towns. Urban and rural areas are fighting the continuous battle against a scourge of plastic litter. On June 5, 2018 the United Nations mark the World Environment Day which plastic pollution is the main theme this year. / AFP PHOTO / Zinyange Auntony