How to reduce pollution, protect the living surroundings of human being and animals is an urgent problem.

怎么减少污染，保护人生存环境是一个迫切问题。

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Bangkok provides an example of how to reduce air pollution.

在减少空气污染方面，曼谷给我们树立了榜样。

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Botany is tackling some of the world's most pressing problems: how to reduce air and water pollution, how to feed an exploding human population, how to conserve energy, and so on.

植物学是解决一些世界上最紧迫的问题：如何减少空气和水的污染，如何养活爆炸性增长的人口，如何节约能源，等等。

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Homebase says it works "very closely with suppliers and in-store colleagues to ensure that customers are informed about how to reduce light pollution and considerate lighting when they purchase outdoor lighting".

BBC: Light pollution: Is there a solution?

"How to reduce the emissions from pollution sources is of paramount importance for improving our ever deteriorating air quality, " he says.

CNN: Lucien Gambarota: Alternative energy pioneer

How can we reduce the real threat to our health and ecosystems caused by ever-increasing water pollution?

UNESCO: MEDIA SERVICES