The world’s population has tripled since the United Nations was created in 1945. And our numbers keep growing, with corresponding pressures on land, energy, food, and water. The global economy is generating pressures as well: rising joblessness, widening social inequalities, and the emergence of new economic powers.
自联合国于1945年成立以来，世界人口已经翻了三倍，并且仍在增长，人口一起增长的是土地、能源、食品和水源压力。全球经济也在制造压力：失业人数不断上升，社会不平等不断加剧，新的经济势力不断形成。