If crop yields are to match the rise in population, then some of them will have to go up dramatically.
如果作物的产量跟人口增长相符合，土地，水，肥中有些将不得不大幅增长。
With the rise in population but no rise in income generation, people in these areas are daily added to the basket of the poor!
随着人口的增长，而收入却无能随之增加，这些地区贫穷的人在日渐增多。
They all stand on the shoulders of giants: British economist Thomas Malthus predicted in the 19th century that the rise in population would lead to widespread famine and catastrophe.
他们都站在巨人的肩膀之上：英国经济学家托马斯·马尔萨斯在19世纪预测人口的增长将导致大规模的饥荒和灾难。
The number of adults doing weekly sport did rise, by nearly 2 million in the run—up to 2012—but the general population was growing faster.
截至2012年，每周锻炼身体的成年人数量的确增加了将近两百万，但总人口增长速度更快。
With obesity now affecting 29% of the population in England, and expected to rise to 35% by 2030, should we now recognise it as a disease?
如今，有29%的英国人受肥胖影响，而这个数据预计到2030年会上升至35%，我们现在应该把它视为一种疾病吗？
The number of adults doing weekly sport did rise, by nearly 2 million in the run-up to 2012—but the general population was growing faster.
虽然每周锻炼身体的成年人数量的确有所上升，到2012年增加了将近两百万，但总人口增长速度更快。
This means the rate of reduction of the whale population cannot be countered by such a rise in births.
这意味着鲸鱼出生率的上升无法抵消鲸鱼数量的减少。
When more than 30% of the population belongs to the creative class, as Richard Florida suggested in his 2003 book the Rise of the creative class, ideas are not in short supply.
正如理查德·佛罗里达在2003年出版《创意阶层的兴起》一书中指出的，当超过30%的人口属于创意阶层时，创意并不短缺。
The population sampling survey, conducted by Shanghai Municipal Statistics Bureau, reveals a rapid rise in the size of the unmarried population, especially women.
上海市统计局开展的一项人口抽样调查显示，上海未婚人口数量正在迅速上升，尤其是未婚女性数量。
Three of the cases they studied found that the rise of West Nile virus in the U.S. corresponded to decreases in bird population density.
他们在研究过的三个案例中发现西尼罗河热在美国的的流行与鸟类种群密度的下降相关。
Despite a rise in the number of new tuberculosis (TB) cases worldwide - due to an increase in population - more people are being successfully treated.
虽然新增结核病病例由于人口增长有所增加，更多的病人获得了成功的治疗。
She said that the rise in cases of autism in California cannot be attributed to the state's increasingly diverse population because the disorder affects ethnic groups at fairly similar rates.
她还说，加州孤独症患者的增多不应该归因于其日益复杂的人口组成，因为这对美国民族主体的影响是可以忽略不计的。
The agency projects that in 2030 the world will require 16.9 TW of power as global population and living standards rise, with about 2.8 TW in the U.S..
该机构预计到2030年，由于人口增长和色和生活水平提高，全世界将需要16.9太瓦的能源，其中美国消耗2.8太瓦。
Between 1990 and 2007 population growth slowed down to 1.4%, but the rise in annual wheat yields slackened to 0.5%.
1990年至2007年，人口增长速度减缓到1.4%，但在每年的小麦产量增长减慢至0.5%。
The forecast rise in world's population, from just under 7 billion at the start of 2011 to just over 9 billion in 2050, is the equivalent of two extra Indias.
据预测，全球人口将从2011年初的不到70亿，增加到2050年的90亿，相当于增加了两个印度的人口。
The proportion of the world's population with access to electricity will rise over the next 20 years but 1.3b will still be without power in 2030, the International Energy Agency said.
国际能源署表示，虽然未来20年中全球能用上电的人口比例将上升，但到2030年，仍将有13亿人用不上电。
The FAO also reports that food production needs to rise by 70% in the next 40 years to meet population growth, while there will be less available land due to urbanization and climate change.
粮农组织还在报告中提出，食物需求在未来的40年因人口增长将会上升70%，但与此同时可耕地却因城市化及气候变化而逐渐减少。
Both these scientists warned that the sea-level rise would adversely impact 35 per cent of the world's human population as they live in coastal regions.
这两位科学家都警告说，海平面上升将对世界35%的人口产生不利影响，因为他们生活在沿海地区。
The rise in cases underlines the urgent need to conduct high-quality immunization campaigns to rapidly boost population immunity levels.
病例的增加强调了迫切需要开展高质量的免疫运动以便迅速增强人群免疫水平。
With an increasing population that is also interested in skin care, the need for skin care specialists or estheticians is on the rise.
随着更多的人群对于皮肤护理感到兴趣，对于皮肤护理师或者美容师的需求处在增长之中。
One implication of this work is that reaction times in the population will probably improve with the rise of fast-action video-games.
这项研究的一个启示就是：大众的反应时间将会随着需要快速反应的电子游戏的兴起而改善。
As more water runs off, there is more erosion, while the drier conditions allow for a rise in the rodent population, which further decimates the soil.
随着更多的水分的流失，会有更多的侵蚀，同时旱情会让啮齿类动物数量上升，这又会毁坏土壤。
Population growth in the suburbs has slowed.For the present the rise of knowledge-intensive global industries favours centres rich in infrastructure and specialised skills.
郊区人口增长放缓，现在全球范围内不断崛起额知识密集型产业更加青睐那些拥有优良基础设施和熟练专业技能的城市中心。
Population growth in the suburbs has slowed. For the present the rise of knowledge-intensive global industries favours centres rich in infrastructure and specialised skills.
郊区人口增长放缓，现在全球范围内不断崛起额知识密集型产业更加青睐那些拥有优良基础设施和熟练专业技能的城市中心。
At the least, caring for an aging population will eat into the world's reservoir of savings and could well make capital, already set to rise in price, even more expensive.
至少，对人口老化会侵蚀全球的储蓄池并且可能透支资本的顾虑，已经抬高了物价，使它更昂贵了。
At the least, caring for an aging population will eat into the world's reservoir of savings and could well make capital, already set to rise in price, even more expensive.
至少，对人口老化会侵蚀全球的储蓄池并且可能透支资本的顾虑，已经抬高了物价，使它更昂贵了。
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