"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。
Now researchers say they can begin to predict these tipping points by searching for universal early warning signs.
如今，研究人员称，他们能够通过探索通用的预警信号来预报这些转折点。
And they fear a "tax tipping-point", when a majority of Americans pay little or no taxes and discover that they can vote themselves goodies paid for by others.
他们也害怕“税收引爆点”出现，那时大多数支付很少或不交税的美国人将发行他们用投票就可以让别人帮他们交税。
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