One of the few options that could turn back the clock and reduce carbon levels in the atmosphere.

这个方案是少数几个能使时光倒流，减少大气中二氧化碳水平的方案之一。

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"This is an idea that can not only stop the clock on carbon dioxide, it can turn it back," he said, although he conceded that tipping large quantities of lime into the sea would currently be illegal.

他说：“这个创意不仅是让二氧化碳排放时钟停止，而且还要让它倒退回去。”尽管他承认，目前向海洋中倾倒大量石灰还是非法的行为。

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