纪录片《全球怪象》 第8期：弱风暴（在线收听）

Part of this increase in hurricane power

八十年代至今

from the '80s to recent times,

飓风越来越强的一部分原因

is related to sea surface temperature.

与海洋表面温度有关

The reason is that as the temperature goes up,

随着温度的上升

this thermal disequilibrium

海洋与大气间的

between the ocean and atmosphere also goes up.

热力不平衡也随之加剧

It goes up at a rate that would increase the wind speed

按理说 温差每增加一摄氏度

of hurricanes maybe 7% for every one degree C.

飓风的风速就会上升7%

But we've seen a lot more

但我们观测到半摄氏度

than 7% for half a degree.

就造成了远超7%的效果

So we're trying to understand that.

我们想要找到原因

But he's not just interested in what's happened in the past.

他不仅对过去发生了什么感兴趣

He's trying to get a sense of what the future might be

他还想要知道如果海洋温度继续上升的话

if ocean temperatures continue to rise.

未来会是怎样的情况

If we look at the distribution of hurricanes

若要画一张当今气候条件下

in the present climate,

飓风的强度分布图

with weak storms over on this side

这边代表弱风暴

and strong storms over on this side,

那边代表强风暴

what we see is lots of weak events.

弱风暴占大多数