When air pollution hurts people's health and heats up the climate it makes sense to do something about it. But what about pollution that cools the planet?
当空气污染危害人体健康，使气候升温时，对此采取行动情有可原。那么用污染物使地球降温这个做法如何呢？
When air pollution hurts people's health and heats up the climate it makes sense to do something about it. But what about pollution that cools the planet?
当空气污染危害人体健康，使气候升温时，对此采取行动情有可原。那么用污染物使地球降温这个做法如何呢？
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