It's not only Beijing.Population increase is a big problem in many countries.

不只是北京。人口增长在很多国家都是个大问题。

As our population increases, our ecological footprint will follow.

随着人口的增长，我们的生态足迹也会遍布各地。

Demand is rising rapidly, because of the world's increasing population and expanding industry.

需求量正在激增，因为整个世界人口急剧增长，工业规模不断扩大。

Largely due to massive population increases across Africa and Asia over the past century.

主要原因是在过去的一个世纪里，整个非洲和亚洲的人口大幅增长。

He says as the population increases, the amount of water for each person is decreasing.

他说随着人口数量的增长，每个人所能得到的用水量在减少。

These bugs were found to have experienced a population increase of about 11 percent every 10 years.

他们发现这些昆虫的数量有所增长，每10年增长大约11%。

The world population increased fourfold in the last century, so what can we expect for the next century?

世界人口在过去的一个世纪里增加了四倍，那么，下个世纪会怎么样？

Yes, as human populations increase while natural habitats decline, people and animals are increasingly being forced to compete for space.

是的，随着人口数量的增加，自然栖息地在减少，人类和动物越来越多地被迫争夺空间。

The island's population increased by more than 70 percent from 1980 to 2020, to 4.3 million people, found government data.

政府数据显示，该岛的人口从1980年到2020年增长了70%以上，达到430万人。

In early summer the bird population increases and we look forward to the return of many of our beautiful bird friends.

初夏，鸟的数量增长，我们盼望着许多美丽的鸟类朋友的回归。

The study describes a smaller overall population increase to decline in female fertility as women become more educated. Ian McWilliam reporting.

该研究称，随着女性受教育程度的提高，女性生育率下降，导致总体人口增长幅度较小。伊恩·麦克威廉报道。

So it's obvious that large populations increase traffic.

所以很明显，大量人口会增加交通量。

Still, experts say the bigger threat to the environment is consumption, which is highest in developed countries not undergoing big population increases.

不过，专家们表示，对环境的更大威胁来自消费。消费水平在人口没有大幅增长的发达国家最高。

As urban populations increased, unemployment, overcrowding and poverty became widespread.

随着城市人口的增加，失业、过度拥挤和贫困变得普遍。

But the population increases dramatically – a lot – during the summertime.

但是在夏季，人口急剧增加——很多。

This was despite the U.S. population increasing by 40 percent in the same period.

尽管美国人口在同一时期增长了 40%。

And in 2021, Florida saw the second biggest  population increase in the entire country.

2021 年，佛罗里达州的人口增长位居全国第二。

Even as populations increase in some countries, the U.N. says rates are expected to drop by one percent or more in 61 nations.

联合国表示，尽管一些国家的人口在增加，但61个国家的出生率预计会下降1%或更多。

So, feeders actually help bird populations increase rather than cause their decline.

因此，喂食器实际上有助于鸟类数量的增加，而不是导致鸟类数量的减少。

Between the 1930s and 1980s, the US raccoon population increased twentyfold, and it's still going strong.

在20世纪30年代到80年代之间, 美国狸的数量增加了20倍, 而且仍然很强劲。