联合国：2100年全球人口将达到109亿（双语）

　　不管去哪里，到处都是人?对不起，世界上的人口还会更多。联合国最新报告称，尽管全球生育率持续下降，人口增速与两年前的预期相比有所放缓，但到2050年总人口预计会从当前的77亿增加到97亿，并将在本世纪末前后达到109亿。

　　The world’s population could swell to 10.9 billion by the end of the century, a new United Nations analysis found, raising concerns that adding more than 3 billion people to the planet could further deplete natural resources and accelerate global warming.

　　联合国最新分析发现，到本世纪末，世界人口可能会增至109亿。人们担心，地球上增加30多亿人口可能会进一步耗尽自然资源，加速全球变暖。

　　The increase, up from the current count of 7.7 billion people, is expected despite a continued decline in the global fertility rate, which has fallen from 3.2 births per woman in 1990 to 2.5 births per woman this year. Experts say the global fertility rate will continue to decline, but the world’s overall population will still rise, hitting 9.7 billion by 2050.

　　尽管全球生育率持续下降，但预计届时这一数字仍将远超目前的77亿人口。全球生育率从1990年的3.2下降到今年的2.5。专家表示，全球生育率将继续下降，但世界总人口仍将增长，到2050年达到97亿。

　　The new report predicts slower population growth than the UN’s last assessment, released in 2017. That estimate projected that the world population would reach a staggering 11.2 billion by the end of the century. The revised figures reflect the downward trend in the global fertility rate, which means the populations of more countries are shrinking.

　　这份新报告预测的全球人口增长速度低于联合国2017年发布的上一次评估。此前的评估预计，到本世纪末世界人口将达到惊人的112亿。修正后的数据反映出全球生育率下降的趋势，这意味着更多国家的人口正在减少。

　　staggering ['stæɡərɪŋ]：adj.惊人的，令人震惊的

　　The fastest growth, according to the new report, is most likely to occur in sub-Saharan Africa, which is expected to double its population in the next 30 years. The report also projected that India would become the world’s most populous country by about 2027, surpassing China. Over the next 30 years, 54 other countries are expected to see population declines, including Lithuania, Bulgaria, Ukraine and Japan.

　　根据这份新报告，人口增长最快的地区最有可能出现在撒哈拉以南非洲，预计在未来30年，该地区的人口将增加一倍。报告还预测，到2027年，印度将超过中国，成为世界上人口最多的国家。在未来30年，预计其他54个国家的人口将出现下降，包括立陶宛、保加利亚、乌克兰和日本。

　　The United States is estimated to grow from 329 million people in 2019 to 434 million people by the end of the century, with most of that projected increase owing to migration.

　　据估计，到本世纪末，美国人口将从2019年的3.29亿增长到4.34亿，增加的大部分人口将来自移民。

　　According to the UN, many of the fastest-growing regions are among the poorest, which could exacerbate issues of hunger and displacement.

　　根据联合国的数据，许多人口增长最快的地区都属于最贫穷的地区，这可能会加剧饥饿和流离失所的问题。

　　Scientists are also concerned about the effect of population growth on climate change. As the global population increases, so will humanity’s footprint on the planet.

　　科学家们还担心人口增长对气候变化的影响。随着全球人口的增长，人类将影响地球上更广泛的区域。