Floods,droughts,pollution and climate change have created even more problems.

VOA: special.2010.04.05

Other cultures focused more on an ethics of divinity where notions such as purity, sanctity, pollution and sin are relevant.

还有的文化则重于神性道德,他们的道德则与纯结，神圣，亵渎，罪孽等有关。

耶鲁公开课 - 心理学导论课程节选

It's a bit more ethical because you don't have to worry about all the pollution

这样做很符合社会公德，因为你不用担心会产生污染，

地铁的好处 - SpeakingMax英语口语达人

The World Health Organization estimates about two million people die prematurely every year due to air pollution, more than half in developing countries.

VOA: standard.2009.03.23

But again, the more people cycle, the less pollution we have.

但是再次地，人们骑自行车越多，污染就会越少。

我使用自行车 - SpeakingMax英语口语达人

Someone just needs to give them a little spark." More than 50,000 children die each year in Yemen because of diseases caused by water pollution.

VOA: standard.2010.04.01

But we need to become more concerned about global warming, pollution,

我们需要更多关注全球变暖、污染问题，

有很多活动 - SpeakingMax英语口语达人

"The pollution issues are even more acute in the big urban areas,".

VOA: standard.2009.03.23