As a result of pollution, climate change, overfishing and ocean acidification, one-quarter of global reef cover has been lost in the last 50 years and one-third of reef species are endangered.
因为污染、环境变化、过度捕捞和海洋酸化，在过去的50年中全球大约四分之一的礁石已经死亡、三分之一的礁石濒临灭绝。
During the next two weeks, you can help build a map of global light pollution, assisting scientists and astronomers as they monitor the loss of virgin night skies.
在接下来的两周内，您能帮助科学家及宇航员们建立起一张全球光污染地图，因为他们发现夜空不再那么的清澈透明。
This newspaper has long argued for a global carbon tax as a reasonable way to tax all forms of pollution.
本刊长期以来始终赞成在全球范围内将碳作为一种合理的标准，从而对一切污染形式进行征税。
The best it seems realistic to hope for as a matter of choice are technological improvements that will slow pollution, the exhaustion of resources, and global weather changes.
作为一种选择而言，最现实的希望是那些能够减少环境污染、能源耗竭和全球气候变化的技术进步。
We have used more resources, burnt more fuel, caused more pollution and killed off more animals and plants as we have come closer to each other to form a truly global village.
为了让彼此间联系得更紧密，营造出一个真正的地球村，我们消耗了更多的资源，烧掉了更多的能源，造成了更多的污染，灭杀了更多的动植物。
As Earth staggers under the weight of pollution, humanity needs to better balance the health of the environment against a global consumer economy that grows larger each year.
作为地球污染的重压下蹒跚，人类需要更好地平衡环境的健康对全球消费的经济增长是每年大。
Groundwater nitrate pollution, as a global problem, is not only an environmental issue but also an economic and human health problem.
地下水中的硝酸盐污染具有全球性，这不仅是一个环境问题，也是一个经济和人类健康问题。
A series of ecological issues such as global environmental pollution and resource crisis have become the crucial issues affecting global security.
全球环境污染和资源短缺等一系列的环境问题已经成为影响全球安全的重大问题。
In comparison, what are developed countries' remedies for China, which, as a global factory, is blamed for emissions and meanwhile suffers largely from the pollution.
相比之下，对于中国这样一个世界工厂，这样一个既被指责排污又同时被污染困扰着的国家，发达国家要怎么去医治呢？
This is such a big issue, and I think the work Ma Jun and others are doing will bring environmental pollution in China to the forefront as one of the biggest global problems of our time.
把中国环境污染这个问题提到讨论的日程上，让人们了解到这是现代世界最严重的问题之一。
This is such a big issue, and I think the work Ma Jun and others are doing will bring environmental pollution in China to the forefront as one of the biggest global problems of our time.
把中国环境污染这个问题提到讨论的日程上，让人们了解到这是现代世界最严重的问题之一。
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