Overconsumption by the world's fortunate is an environmental problem unmatched in severity by anything but perhaps population growth.

这个世界的幸运儿所进行的过度消费成了一个环境问题，其严重程度也许只有人口增长问题能与之相提并论。

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But an increasing population is an environmental problem in many countries.

但是日益增长的人口是许多国家的环境问题。

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The emission of nitrogen oxide of the pulverized coal boilers is also becoming an environmental problem to be solved.

燃煤锅炉的氮氧化物排放危害很大，成了电力行业急待解决的环境问题。

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Instead they focus on sophomoric framing of the controversy as an environmental problem but ignore the larger picture.

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There is an environmental problem in terms of the food system we have.

BBC: Public 'need to be more honest about eating habits'

When an environmental problem does have a solution, it is often counterintuitive.

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