In fact, there's a name for the informal geologic epoch they say human activity has caused — the Anthropocene.

事实上，他们给这种人类活动引起的非正式地质时期起了个名字—“人类纪”。

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Scientists say a new geologic epoch has begun whereby humans are causing major damage to global water systems.

科学家称人类开始对全球水系统造成重大破坏，一个新的地质时期由此开始了。

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