Under current conditions, they have suggested the circulation system could collapse as soon as 2025 or as late as 2095.

在目前的情况下，他们认为循环系统最早可能在2025年崩溃，也可能最晚在2095年崩溃。

Like a failing heart pumping through clogged arteries, if this circulation system fails, at this depth, it's almost certain death.

正如衰弱的心脏给阻塞的动脉泵血一般，如果循环系统受阻，潜至如此深度就几乎意味着死亡。

So there are two dominant circulation systems in the Arctic.

- 所以北极有两个主要的环流系统。

For thousands of years, Earth's oceans have depended on the AMOC circulation system – which acts like a conveyor belt - to control climate.

几千年来，地球上的海洋一直依赖AMOC环流系统来控制气候，它的作用就像一条传送带。