纪录片《地球劫难日》 第30期 二叠纪杀手

4/5℃, not enough to kill the world, but then Wignall realized this was only part of the story.

4-5℃并不足以毁灭世界，但后来Wignall意识到这只是故事的一部分。

For the methane¹ to melt, something must already have raised world temperatures 4/5℃.

在甲烷融化之前，有些因素已经使全球气温上升了4-5℃。

The methane would then have raised them a further 5℃ more, to a total of 10℃.

然后甲烷再使全球气温上升5℃，总共是10℃。

This would have been more than enough to kill practically every living thing.

事实上这已足够杀死所有生物。

Wignall slowly realized what the evidence from Greenland was telling him.

Wignall渐渐明白格陵兰的证据说明了些什么。

There had not been one Permian killer², but two.

二叠纪杀手不止一个，而是两个。

Paul Wignall now put together the extraordinary story of what might have happened 250 million years ago.

Paul Wignall现在将把2亿5千万年前发生的事串联起来。

It started, as many had thought, with the Siberian Traps.

和许多人想的一样，它从西伯利亚地盾开始。

Thousands of miles of lava³ flows would have burst from cracks deep in the earth's crust.

数千英里的熔岩通过裂缝从地壳深处奔涌而出。

This was the first killer.

它就是第一位杀手。

1 methane   

n.甲烷，沼气

参考例句：

• The blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。
• Methane may have extraterrestrial significance.甲烷具有星际意义。

2 killer   

n.杀人者，杀人犯，杀手，屠杀者

参考例句：

• Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
• The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。

3 lava   

n.熔岩，火山岩

参考例句：

• The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
• His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。