评论
打印
Arctic sea ice has been shrinking for 46 straight years.[qh]
北极海冰已经连续46年缩减。[qh]
In fact, NASA says we've lost enough Arctic ice to fill the entire state of Alaska.[qh]
事实上，美国国家航空航天局表示，我们已经失去了足够填满整个阿拉斯加州的北极冰。[qh]
One big question is, can anything be done?[qh]
一个大问题是，我们能做些什么吗？[qh]
Well, an ambitious group of problem solvers have an idea, create new ice by pumping water from below.[qh]
好吧，一群雄心勃勃的问题解决者有了一个想法，通过从下面抽水来制造新的冰。[qh]
Check this out.[qh]
看看这个。[qh]
Can you refreeze melting Arctic ice?[qh]
你能重新冻结融化的北极冰吗？[qh]
This startup says it's developing a way to do so.[qh]
这家初创公司表示，他们正在开发一种方法来做到这一点。[qh]
We were in Alaska, we did a submersible pump, we made a hole in the ice, we pumped water.[qh]
我们在阿拉斯加，我们做了一个潜水泵，我们在冰上打了一个洞，我们抽水。[qh]
Within hours, it was solid frozen.[qh]
几个小时内，它就完全冻结了。[qh]
It is as simple as that.[qh]
就这么简单。[qh]
A study says the Arctic could be free of sea ice during the month of September by the 2030s, about a decade earlier than previous projections.[qh]
一项研究表明，到2030年代，北极在9月份可能没有海冰了，比之前的预测提前了大约十年。[qh]
And this would have dire ripple effects right around the world.[qh]
这将在全球范围内产生可怕的连锁反应。[qh]
Since the 1980s, the amount of sea ice that's more than a year old has roughly fallen by half.[qh]
自20世纪80年代以来，超过一年的海冰数量已经减少了大约一半。[qh]
We're currently losing about six centimeters every year.[qh]
我们目前每年大约损失6厘米。[qh]
So if you re-ice, you can add an extra 70 centimeters of thickness.[qh]
所以如果你重新结冰，你可以增加额外的70厘米厚度。[qh]
It's as simple as pumping water on top of existing ice.[qh]
就像在现有冰上抽水一样简单。[qh]
Basically you expose the sea water to the cold temperature of the atmosphere and it will freeze very, very quickly.[qh]
基本上，你将海水暴露在大气的寒冷温度下，它会很快冻结。[qh]
We know that works.[qh]
我们知道这是可行的。[qh]
UK-based company Real Ice plans to use automated underwater vehicles powered by green hydrogen.[qh]
总部位于英国的Real Ice公司计划使用由绿色氢驱动的自动化水下车辆。[qh]
They use small pumps to bring water from below the ice to the top, creating a lake that freezes, thickening the ice sheet.[qh]
他们使用小型泵将水从冰下抽到顶部，形成一个湖泊，冻结并加厚冰层。[qh]
Why would we do it from under the water?[qh]
为什么我们要从水下进行呢？[qh]
It seems complicated.[qh]
这似乎很复杂。[qh]
In reality, operating underwater is actually making many things simpler and more controlled.[qh]
实际上，在水下操作实际上使许多事情变得更简单和更可控。[qh]
If you think the opposite, operating on top of the sea ice in the middle of the Arctic, you're facing very, very cold temperatures, high winds, all sorts of precipitations from the sky.[qh]
如果你反过来想，在北极中间的海冰上操作，你将面临非常非常寒冷的温度、强风、来自天空的各种降水。[qh]
The project is currently in the early testing stages.[qh]
该项目目前处于早期测试阶段。[qh]
They aim to be working with underwater prototypes in 2024 and are planning to test the re-icing on an Arctic bay in 2027.[qh]
他们的目标是在2024年使用水下原型，并计划在2027年在北极海湾测试重新结冰。[qh]
This is a preservation of a habitat, exactly like a tropical forest or a coral reef.[qh]
这是对栖息地的保护，就像热带雨林或珊瑚礁一样。[qh]
