The world has a gargantuan waste problem. Two billion tons of municipal solid waste is generated globally per year, according to the World Bank — equivalent to the weight of the Great Pyramid of Giza, in trash, every single day.
원문출처 : https://www.cnn.com/2019/11/27/business/technology-and-trash-intl/index.html
원문출처 : https://www.cnn.com/2019/11/27/business/technology-and-trash-intl/index.html