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人口问题是当今世界上最重要的社会问题之一。是土地、粮食、自然资源、环境污染等重大问题的交织点。人口问题与全球性的生态不平衡有着密切的关系。由于人口无节制地迅速增长,促使已经失去平衡的全球生态系统更趋恶化,反过来又直接威胁着人类的生存和安全。世界人口增长的速度不断加快,这是非常现实的严重问题。远在公元前8000年,全世界的人口只有500万,到了公元元年,增长到2至3亿,到1650年,人口增加了一倍约5亿,1850年为10亿,
The issue of population is one of the most important social problems in the world today. It is an intertwined point of major issues such as land, food, natural resources and environmental pollution. Population problems are closely linked to the global ecological imbalance. As a result of the unbridled and rapid population growth, the deteriorating global ecosystem has deteriorated, which in turn directly threatens the survival and security of humankind. The ever-accelerating population growth in the world is a very real and grave problem. Far in BC 8,000 BC, the world's population was only 5 million. By the first year of AD it grew from 200 to 300 million. By 1650, the population doubled to about 500 million and 1850 to 1 billion.