
English: 
Man made catastrophes – bombs and nuclear disasters
- they’ve all have devastating impacts on the world.
But one researcher has found them useful in understanding climate change in oceans.
When the Japanese Fukushima power plant collapsed in 2011,
it released large amounts of radioactive material straight into the ocean.
At these levels the radioactive material is not dangerous but it gets carried along in the three dimensional ocean currents.
Scientists could then use it as a tracer to test and fine-tune their models of how these ocean currents travel.
They predicted when it would hit the US West Coast with an accuracy of a couple of weeks.
What do radioactive water and climate change have to do with each other?
The radioactive materials they move through the oceans,

Chinese: 
人为灾害 炸弹与核能灾难
它们都对整个世界有着毁灭性的影响
不过一位研究者
它们有助于我们认识海洋的气候变化
灾难科学 核能灾难
在2011年福岛电厂崩塌后
它释放了大量直接流入海洋的放射性物质
从这些层面来看放射性物质并不危险
不过它们会随着三维洋流顺流而去
科学家会将它用作追踪器去监测和调整
他们的洋流流动方式的模型
他们可以预测它到达美国西海岸的时间
所预测时间可以精确到几周内
放射性物质和天气变化是如何相互作用的？
放射性物质通过海洋移动
不过不仅它们本身随着海洋流动

Chinese: 
二氧化碳也会随着潮流移动
所以二氧化碳和放射性物质都以相同的方式移动
每个人应该都知道二氧化碳是导致温室效应的气体
它在全球变暖中扮演着重要角色
不过事实上 我们因为燃烧化石燃料
而释放的二氧化碳的30%都流入了海洋
所以海洋存积了大量的本应进入大气
甚至能够让变暖程度更严重的二氧化碳
海水吸纳二氧化碳
然后将它们转入到海水更深处
大约4000米深的地方
目前贮存在海洋深处的二氧化碳
若释放出来将会再次暖化地球
这将会是一个巨大的灾难
我们确实需要为此做好充分的准备
并明白这场灾难发生的时间与地点
随着气候变暖
我们知道潮流将会变得更浅
所以我们需要不断地调节我们的海洋模型
有没有其它的活动可以帮我们塑造海洋模型呢

English: 
but it’s not only those that move through the ocean, CO2 also gets carried with the currents.
So the CO2 and the radioactive
material move in the same way.
Everybody knows of course that CO2 is a really important greenhouse gas
and that CO2 in the atmosphere plays a big role in warming the world.
But actually 30% of all the CO2 we’ve emitted by burning fossil fuels has gone into the ocean.
So the ocean is storing a lot of the CO2 that would otherwise have been in the atmosphere
and even more increased the warming that we’ve seen already.
The waters that take up the CO2, they plunge down to great depths, maybe 4,000 metres deep.
This CO2 that is now stored deep into the ocean coming back up will warm the planet again.
That would be pretty catastrophic and we would really need to be prepared for that
and know when it is happening and where it is happening.
As the climate is warming, we know that the currents are going to be shallower,
so we constantly need to adjust our ocean models.
Are there other events that have helped shape the models?

English: 
Yeah, the introduction of CFC’s in the fridges and deodorants and everything,
these CFC molecules are also in the ocean.
The other things are for instance bomb carbon, those are special carbon isotopes that come from nuclear detonations.
And both the CFC’s and the bomb carbon have only been around for 70 years,
they weren’t in the environment before so if we find water, somewhere deep away in the ocean that doesn’t
have any of these molecules or atoms
then we know that it has to have not seen the surface of the ocean for at least 70 years.
If CO2 is such a problem in the atmosphere, surely it’s a problem in the oceans.
Yes you’re absolutely right, the CO2 in
the ocean leads to what we call ocean acidification
and that literally means that the ocean gets more acid.
That is not good for a lot of creatures that live in the sea.
Corals like in the Great Barrier Reef, some shellfish, some fish themselves,
they can’t build their skeletons if the
ocean is too acid and they will literally dissolve under an acid ocean.

Chinese: 
其实是有的 冰箱 除臭剂
和其它很多东西都能产生氯氟烃
这些氯氟烃分子同样也存在于海洋中
其它的还有碳爆炸
这些是特殊的碳同位素 它们来自于核爆炸
氯氟烃和碳爆炸都只能存在70年
在我们找到水之前它们并没有存在于水以外的环境中
海洋深处并没有这些分子或者原子
所以我们知道它们至少有70年没有出现在海洋表面了
如果二氧化碳在大气中有这样的问题
它在海洋中肯定也有同样的问题
当然 你绝对是正确的
海洋中的二氧化碳会导致我们所说的海洋酸化
从字面意思说就是海洋会变得更有酸性
这对于生存在海洋的许多生物来说都是不利的
比如大堡礁的珊瑚 贝壳 和鱼
在海洋过酸的情况下会因无法建造
它们自身的骨骼而溶解于酸性的海洋中

Chinese: 
所以海洋的二氧化碳对于它们来说是灾难性的
那么如果这对于大气和海洋来说是一个问题的话
我们需要怎么做呢
答案很简单 我们需要停止释放二氧化碳
从理论上 问题的根本就是行动
让全世界的人一起努力
让我们承诺停止在大气中释放二氧化碳
本字幕由UNSW学生翻译专业学生 何霄 译制

English: 
So this CO2 in the ocean is very catastrophic for them.
So therefore if it’s a problem in the atmosphere and the oceans, what do we need to be doing?
We need to stop emitting CO2, the answer is relatively simple, theoretically,
the problem of course is actually acting, is getting everybody in this world together,
to say  yes we need to stop putting CO2 in the atmosphere.
