What's very clear is the rate of extinctions is alarming.

很明显，物种灭绝的速度令人担忧。

But studies suggest that rates of extinction today for many organisms are hundreds to thousands of times higher than the normal background.

但研究显示，我们今天许多生物的灭绝率高于自然生态灭绝率的几百至几千倍。

We are experiencing the fastest rate of extinction ever, and plastic is in the food chain.

我们正在经历有史以来最快的灭绝速度，而塑料就在食物链中。

Already in the past hundred years, the rate of extinction for species across the planet was 100 times higher than normal due to human impact.

在过去的一百年里，由于人类的影响，地球上的物种灭绝率已经比正常情况高了100倍。

If we compare the current rate of extinction to the background or " normal" rate of extinction, the same 200 vertebrates would have taken approximately 10,000 years to die out through natural selection.

如果我们将当前的灭绝速度与背景或“正常”灭绝速度进行比较，同样的 200 种脊椎动物将需要大约 10,000 年才能通过自然选择灭绝。