From this, it is apparent that drastic steps must be taken immediately to develop corrective measures for the pollution problem.

从这一点可以看出，必须立即采取严厉措施来制定污染问题的相关纠正措施。

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They are told how sensitive each species is to pollution, and asked to work out from this how polluted the pond is.

他告诉孩子们每一种昆虫对污染的敏感性，并要求他们据此推算出池塘的污染程度。

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Living conditions are hard in this concrete, steel and glass urban jungle, that has been cut away from nature a long time ago, with pollution reaching truly alarming levels.

在这个混凝土，钢铁和玻璃的都市丛林中，很久以前就与大自然无缘，污染达到令人震惊的程度，生活条件极为艰苦。

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Scientists have known for a long time that aerosols cool climate by reflecting sunlight and making clouds brighter, but the new study is the first to use a global model to estimate the net effects on plant carbon intake resulting from this type of atmospheric pollution.

CNN: Study: Pollution helps plants absorb C02

You could get close to a 15 percent reduction in global warming pollution just from this technology.

NPR: States Push Automakers on Fuel Efficiency

Another question: If this is really about removing pollution from the jungle and compensating villagers, why not sue Petroecuador?

FORBES: Chevron Plaintiffs Roll In Their New Weapon: Settlement Expert