综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

World Population: 7 Billion - Childbirth

Updated:2011-10-26 11:22

(Agencies)

 

The world's 7 billionth person will be born into a population more aware than ever of the challenges of sustaining life on a crowded planet but no closer to a consensus about what to do about it.

To some demographers the milestone foreshadows turbulent times ahead: nations grappling with rapid urbanisation, environmental degradation and skyrocketing demand for healthcare, education, resources and jobs.

To others, a shrinking population, not overpopulation, could be the longer-term challenge as fertility rates drop and a shrinking workforce is pushed to support social safety for an ageing populace.

"There are parts of the world where the population is shrinking and in those parts of the world, they are worried about productivity, about being able to maintain a critical mass of people," Babatunde Osotimehin, executive director of the UN Population Fund, told Reuters.

"Then there are parts of the world where the population is growing rapidly. Many of these countries face challenges in terms of migration, poverty, food security, water management and climate change and we need to call attention to it."

The United Nations says the world's seven billionth baby will be born on October 31.

澜沧| 河源市| 高清| 鄯善县| 卢龙县| 巴青县| 额敏县| 卫辉市| 逊克县| 元江| 蕉岭县| 南汇区| 和田县| 临高县| 二手房| 吉首市| 澎湖县| 昆山市| 扶风县| 静乐县| 闽侯县| 泰来县| 大竹县| 和硕县| 诸城市| 东明县| 安义县| 梁山县| 池州市| 宝清县| 宿松县| 长泰县| 镶黄旗| 双牌县| 含山县| 静海县| 新宁县| 和平区| 邵东县| 芷江| 兴国县|