世界是否幸存下来了人口炸弹? 一个10年更新更新
1Department of Economics and Population Studies Center, University of Michigan, Ann Arbor, MI 48104 USA.
Population and environment
|June 5, 2023
概括
全球人口增长放缓,但生活水平有所提高. 应对气候变化对于持续减少贫困和饥饿至关重要,特别是在非洲.
科学领域:
- 人口统计数据 人口统计数据
- 全球发展 全球发展
- 环境科学 环境科学
背景情况:
- 从1960年到2011年,世界人口增加了40亿,这与全球生活水平的显著改善,减少贫困和人均粮食生产相吻合.
- 自2011年以来,人口持续增长,减少贫困和粮食生产的持续进展超过了全球人口增长.
- 然而,最近的趋势显示,粮食生产增长放缓,非洲的产量下降,大宗商品价格上,气候变化对发展构成挑战.
研究的目的:
- 分析自1960年以来的全球人口增长趋势及其与生活水平,贫困和粮食安全的关系.
- 审查自2011年以来的进展和挑战,重点关注粮食生产,贫困和气候变化的影响.
- 评估人口增长,二氧化碳排放和可持续发展要求之间的联系.
主要方法:
- 从1960年到现在的历史全球人口数据的分析.
- 检查不同地区生活水平,贫困率和人均粮食生产的趋势.
- 评估气候变化对粮食安全和贫困的影响,重点关注非洲.
主要成果:
- 尽管1960年至2011年人口增长史无前例,但在全球范围内,生活水平,减少贫困和人均粮食生产均有显著改善.
- 自2011年以来,进展一直在继续,粮食生产总体上超过了人口增长,贫困率下降,尽管速度较慢.
- 挑战包括非洲粮食生产增长放缓,商品价格创纪录高,气候变化加剧的影响,尽管高增长国家对全球二氧化碳排放的贡献很小.
结论:
- 随着全球人口的增长,减少贫困和饥饿的持续进展是可以实现的.
- 通过高收入和中等收入国家采取有针对性的行动来应对气候变化,对于未来的发展收益至关重要,特别是对于像非洲这样的脆弱地区.
- 持续监测和适应性策略是必要的,以应对人口动态,资源可用性和环境可持续性的复杂相互作用.
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