如果上述说法有道理，为什么不在世界各地都减少人口呢？
And if that makes sense, why not start cutting population everywhere?
遗传漂变减少人口差异的速度比变异要快得多。
Genetic drift reduces diversity in populations more quickly than mutation can introduce it.
对于那些仍讨厌人类的人来说，如果你实在想让周围的人变少，也有减少人口同时提高生活质量的办法。
And for those who remain committed misanthropes, if you really want fewer people around, there are ways to reduce population growth while improving the quality of life for everyone.
他们也大量的残杀了地球上的人口，作为他们计划的一部分就是去减少人口的数量已达到更好控制的目的。
They also decimated the population of Earth as part of their plan to reduce it to more manageable numbers.
他的话突然间变得有意义，当你明白减少人口就减少了二氧化碳排放，而且在更多人身上用更多疫苗就使人口死亡率增长。
It suddenly seems to make a lot of sense when you understand that reducing the population reduces CO2 emissions, and using more vaccines on more people increases the death rate of the population.
计算机学习甚至可能会减少不断增长的美国监狱人口。
Computer learning may even reduce the growing American prison population.
随着经济发展，贫困人口数量正在减少。
The number of poor men is on the decrease as the economy is growing.
为什么波兰的人口在减少？
环保人士曾预测，石油泄漏将导致世界梅里克地区人口减少，但事实证明这一预测毫无根据。
Environmentalists' prediction that the world's Merrick population would decline as a result of the spill has proven unfounded.
现在，即使是该计划最大的支持者也在谈论面临债务、人口减少和低增长的“百慕大三角”大陆的话题。
Now even the project's greatest cheerleaders talk of a continent facing a "Bermuda triangle" of debt, population decline and lower growth.
它并不是由于某种原因而在过去几百年里减少的庞大人口的残余。
It's not a remnant of some huge population that is dwindled in the last few hundred years for some reason.
塔格兰德计划通过封锁目前进入沙漠的通道，并宣布新的规定，即只允许步行进入沙漠，来阻止这种人口的减少。
Targland plans to halt this population decline by blocking the current access routes into the desert and announcing new regulations to allow access only on foot.
一片片土地荒芜，人口减少。
他指出：“虽然人口在增长，需要养活，但愿意从事农业工作的人却在迅速减少。”
"While the population is growing and needs to be fed, a rapidly shrinking number of people are willing to work in agriculture," he points out.
自20世纪90年代以来，人口专家预测人口数量将增长到90亿，然后增长放慢，甚至可能减少。
Since the 1990s, population experts have predicted the number would grow to nine billion before it begins to slow down and possibly decrease.
在19世纪，奴隶贩子使人口锐减，到1877年，奴隶人口减少到111人。
In the nineteenth century slave traders decimated the population, which shrivelled to 111 people by 1877.
必须把农业部门放在发展的中心，才能在2015年把极度贫困和饥饿人口减少一半。
The agriculture sector must be placed at the center of development to cut in half extreme poverty and hunger by 2015.
中国农村贫困人口大幅减少，但非洲和南亚的贫困问题正在加剧。
China has seen a dramatic decline in rural poverty, but the problem is on the increase in Africa and South Asia.
到2020年，我们必须在2006年的基础上减少80%的碳排放，到2040年将世界人口稳定在80亿，彻底消除贫困，恢复森林和土壤。
We must cut carbon emissions by 80% from their 2006 levels by 2020, stabilize the world's population at eight billion by 2040, completely remove poverty, and restore forests and soils.
俄罗斯人的过早死亡可能会导致人口减少，这将损害该国的经济前景。
The earlier death of Russians may result in a shrinking population, which would damage its economic future.
自20世纪70年代末以来，中国在世界范围内减少了70%的贫困人口。
China is responsible for reducing 70 percent of poverty since the late 1970s all over the world.
作为“杂交水稻之父”，袁隆平克服了巨大的困难，用其一生致力于减少世界饥饿，帮助养活了世界上人口最多的国家。
As "Father of Hybrid Rice", Yuan Longping got over great difficulties and spent his whole life working to reduce world hunger and helping to feed the country with the largest population.
为了解决不断增长的人口的吃住需求，数百万英亩的湿地都被抽干，从而极大地减少了水禽的栖息地。
Millions of acres of wetlands were dried to feed and house the ever-increasing populations, greatly reducing waterfowl habitat.
其一是大家熟知的低出生率和人口减少的地区。
One is the familiar place of low fertility and population decline.
其一是大家熟知的低出生率和人口减少的地区。
One is the familiar place of low fertility and population decline.
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