气候变化是世界气候模式的长期变化，主要是由人类活动造成的。
Climate change is the long-term changes in the world's weather patterns that are mostly caused by human activity.
全球变暖是由人类活动和温室气体的排放造成的。
Global warming is caused by human activities and greenhouse gas emissions.
全球的一氧化二氮排放量中大约有三分之一是由人类活动造成的。
About a third of global nitrous oxide emissions are from human activity.
气候变化已成现实，且归根结底是由人类活动所造成。
Climate change is a reality and it is down to human activities.
全球排放汞的总量中由人类活动引起的占50—70%。
Anthropogenic activities contribute 50 ~ 70% of global mercury emission.
气候变化是由人类活动引起的，而且加重这现象的趋势日益严峻。
The climate change is caused by human activities and there are growing trends to accelerate it.
接纳和再循环由人类活动产生的废弃物(污染物)是海洋的一大功能。
Accept and recycle waste (pollution) generated by human is one of the ocean's main functions.
由人类活动和自然因素综合作用导致的土壤退化已引起全球的日益关注。
Soil degradation induced by human activities together with natural factors has been attracting increasing attention in the world.
大气中的惰性氮是无害的，但报告说主要由人类活动产生的活性氮可能危害自然界。
Nitrogen in the atmosphere is harmless in its inert state, but the report says reactive forms of nitrogen, largely produced by human activity, can be a menace to the natural world.
人越少的地方，由人类活动引发的火灾越少，不管是偶然的还是蓄意的；
With fewer people around, there is less human activity to cause fires, accidental or otherwise;
环境污染的发生主要由人类活动所致，但微生物与环境质量也密切相关。
Although pollution mainly results from human activities, microorganisms are also closely related to the quality of the environment.
这其中大部分人现在转而相信全球变暖并不是由人类活动导致这一错误观点。
A majority of people now believe - incorrectly - that global warming is not even caused by humans.
最后，有很多种地震是由人类活动造成的。比如，爆炸和大型建筑物倒塌。
Lastly, there are various types of earthquakes caused by man-made activities, for example, explosions or the collapse of large structures.
这项研究发现，97%的科学专家认为气候变化“极有可能”主要是由人类活动引起的。
The study found that 97 percent of scientific experts agree that climate change is "very likely" caused mainly by human activity.
海平面上升是持续不断气候变化导致的结果，是由人类活动诱发的，包括燃烧矿物燃料。
Sea level rise is expected as a consequence of continuing climate change, which is spurred by human activities including the burning of fossil fuels.
由人类活动引起的上地利用和地被覆盖的变化是地球上环境变化的主要原因。
Human activities, resulted in land use and land cover changes, are main causes of global environmental change.
由人类活动引起的土地利用和地被覆盖的变化是地球上环境变化的主要原因。
Human activities, resulted in land use and land cover changes, are main causes of global environmental changes.
奇怪的是，虽然有98%的森林火灾是由人类活动引起的，但由纵火犯引发的火灾却很少。
Though human activity is responsible for 98% of all wildfires, arson starts a surprisingly small proportion of them.
他建议成立世界性的评估小组来证明全球变暖是否由人类活动引起，同时研究降低排放能否阻止这个过程。
He suggested that an international panel be created to study whether or not global warming was the result of human actions and whether it could be stopped by cutting pollution.
澳大利亚气候学家威尔·斯蒂芬斯辩称，由人类活动引起的气候变化将完全地改变数万年的空气、土壤和海洋。
Australian climatologist will Steffens argued that climate change caused by human activity will fundamentally alter the air, land and oceans for tens of thousands of years.
但是全球科学界已就此达成共识，认为气候变化是目前真实存在的事实，并且是由人类活动造成的。
But the overwhelming consensus of experts from every corner of the international scientific community is that climate change is real, it's happening right now, and it's caused by human activity.
水污染主要由人类活动产生的污染物而造成的，它包括工业污染源，农业污染源和生活污染源三大部分。
Water main pollutants generated by human activity caused, which includes industrial pollution, agricultural pollution and living most of the three sources.
另一项由加拿大哈达克调研公司开展的民意测试表明半数的共和党人不认为气候变化是由人类活动引起的。
Another poll by the Canadian firm Haddock Research showed half of Republicans refuse to believe that it is caused by humans.
人越少的地方，由人类活动引发的火灾越少，不管是偶然的还是蓄意的；人越多的地方，能够烧起来的林地面积也越少。
With fewer people around, there is less human activity to cause fires, accidental or otherwise; with more, there is less wilderness to burn.
我们现在都认识到气候的变化是实实在在的，这一变化由人类活动引发，其影响是全球性的并且将首先波及最贫困的人口。
We all now know that climate change is real, that it is caused by human activity, and that its consequences are universal and will be felt first and foremost by the poorest.
而且，尽管树轮记录为当今全球变暖提供了可对照的内容，由人类活动引起的气候变化远不止取决于树木的年轮。
And the idea of anthropogenic climate change rests on a great deal more than just tree-ring records, useful as they are for providing context to the current warming.
而且，尽管树轮记录为当今全球变暖提供了可对照的内容，由人类活动引起的气候变化远不止取决于树木的年轮。
And the idea of anthropogenic climate change rests on a great deal more than just tree-ring records, useful as they are for providing context to the current warming.
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