Where all these pollution comes from?
那么，这些污染是从何而来的呢？
The soot particles that make up these pollution blankets can both absorb and disperse light, and therefore both warm and cool the climate.
构成了这层污染幕的炭黑颗粒既能吸收也能散射光，因此它既能让气候变暖也让气候变冷。
In this paper, these pollution produced by soil and water loss is defined as nonpoint pollution of soil and water loss type (NPSWLT).
本文定义这种污染方式这种为水土流失型非源污染。
Some drawbacks to wind farms include visual pollution and noise, although these can be overcome by improving their design and locating them in isolated areas.
风力发电场的一些缺点包括视觉污染和噪音，尽管这些可以通过改进设计和将它们安置在偏远地区来克服。
The other group maintains that recent human activities ranging from physical coral destruction through pollution to predator removal have triggered these events.
另一个组织认为，最近的人类活动，从自然的珊瑚破坏到污染，再到捕食者的消失，都引发了这些事件。
Scientists say both studies demonstrate that certain parts of the ecosystem respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.
科学家称这两项研究都表明，生态系统的某些部分对于大气污染的减少反应迅速，但这些发现不应该成为允许污染的理由。
Facing the serious environmental pollution problems, we need to take steps to solve these problems immediately.
面对严重的环境污染问题，我们需要马上采取措施来解决问题。
If we don't all do something to stop sea pollution, these sea animals will die.
如果我们不做些什么来阻止海洋污染，这些海洋动物将会死亡。
Too many tourists cause a lot of pollution to these beaches.
过多的游客给这些海滩造成了很多污染。
These scientists are studying the effects of light pollution.
这些科学家正在研究光污染的影响。
And we have an environmental problem, because all these power plants and all the industries cause pollution.
而且我们有环境问题，因为所有这些发电厂和，工业会造成污染。
These are merely a few of the possible negative effects light pollution has on our world.
这些仅仅是光污染可能给我们的世界所带来的几种负面影响。
Nearly all rich-country cities, whether prospering or declining, worry about transport, pollution, energy, pockets of poverty and so on. These offer troubles a-plenty.
无论兴盛或倒退、几乎所以富裕国家的城市都面临着交通、污染、能源、贫穷地带等造成众多麻烦的难题。
These are risks like HIV infection, malnutrition, diabetes, smoking, alcohol and substance abuse, indoor air pollution and, above all, limited access to basic care for the poorest people.
首先，最贫困人口获得基本医疗服务的机会有限，其它风险是：艾滋病毒感染，营养不良，糖尿病，吸烟，酗酒，吸毒，室内空气污染等。
These proposals have the merit of capping global pollution, of being fair, progressive and easy to understand and of encouraging us to think about our use of energy.
这些建议的优点是限制了全球污染的上限，公平、渐进、易于理解，鼓励我们思考我们对能源的使用。
These cores show that the level of pollution, especially soot, in Himalayan glaciers correlates with emissions in Europe and South Asia.
这些冰心不仅表明了此地的污染程度，更重要的是说明了喜马拉雅山冰川上的烟灰与欧洲和南亚的排放相关。
Many of these companies say that they're not just using fuel cells to reduce energy consumption and pollution, provide reliable backup power, and attract good publicity.
许多这样的公司说，他们使用燃料电池不但是为了降低燃料消耗，降低污染，提供可靠的备用电力，取得良好的名声。
Air pollution hasn't gone away, but these PBX RIGS have been replaced just about everywhere by direct-dial phone lines and computerized call-routing systems.
空气污染一直没有消失，但是这些专用分组交换机却已经被全被直拨电话和计算机化的路由呼叫系统替代了。
To solve these problems, it helps to have two instruments to hand: a carbon tax to discourage pollution directly, and subsidies or other incentives to encourage innovation around the cleaner input.
有两种措施可以帮助克服这些难题：征收碳排放税直接减少污染，通过补助金或者其他激励措施鼓励开发利用环保型原材料的新工艺。
Increasing pollution of the Yangtze River and the threat this poses to the finless porpoise is also a warning for a third of the nation's population that depends on these waters.
持续不断的长江污染以及由此对江豚构成的威胁对于生活在这一水域占据全国人口三分之一的人们来说也是一个警告。
If these targets were to be achieved, significant reductions in risks for acute and chronic health effects from air pollution can be expected.
如果能够实现这些目标，可望大量减少空气污染对健康带来的急性和慢性影响。
Instead, these opportunistic organisms may simply be capitalizing on the slow death of the invertebrates due to pollution, climate change, or other factors.
然而，这些投机取巧的藻类会因污染、气候变化或其他因素而慢慢死亡。
As the best bodies of ore are exhausted, miners move on to less concentrated deposits in more difficult natural circumstances. These mines cause more pollution and require more energy.
含量的百分率愈大，品位愈高-译注最好的矿砂开采殆尽，矿主们会转向开采那些品位不好的矿，但会面临更困难的自然条件，开采这些矿会带来更多的污染，也会需要更大的能耗。
The lifetime emissions from these countries’ planned power stations would match the world’s entire industrial pollution since 1850.
那些国家计划建造的电力站在运行期内排量将会与全世界自1850年来的工业污染量相匹敌。
The lifetime emissions from these countries’ planned power stations would match the world’s entire industrial pollution since 1850.
那些国家计划建造的电力站在运行期内排量将会与全世界自1850年来的工业污染量相匹敌。
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