Helmut Melzer
A cikin 1820, akwai kusan mutane biliyan Biyar na 1,1 a duniya, wanda sama da biliyan 1 ya rayu cikin matsanancin talauci (a karkashin dala 1.90 a rana). Tun kusan 1970, muna rayuwa a cikin duniyar da yawan waɗanda ba talaka ba ke ƙaruwa, yayin da adadin matalauta ke raguwa sosai. Mutane biliyan bilyan 1970 na 2,2 sun rayu cikin matsanancin talauci, 2015 har yanzu yana 705 miliyan, kusan kashi takwas na yawan mutanen duniya. Hasashen Majalisar Dinkin Duniya yana nuna karin raguwa zuwa kusan kashi huɗu a cikin shekara ta 2030.
