But the simulations also reveal that the technique, which mimics the short-term cooling effects of volcanic eruptions, could chill the planet if overdone.

这项技术主要是模拟火山喷发所引起的短期降温效应。但是，模拟实验也显示，滥用这项技术则可能会使地球走向另一极端——严寒。

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The emotional may well once again assume a resumption of widespread discrimination if such freedoms were protected, but the profit motive says this worry is overdone.

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