TED演讲:从大气中移除二氧化碳的新方法(4)

（单词翻译）

Now let's talk about costs.

现在让我们谈谈成本问题。

An energy-intensive version of this technology could cost you as much as $1,000 a ton just to capture it. Let's translate that.

如果仅仅为了捕获一吨二氧化碳而选择在该技术上投入大量能源，其花费将多达一千美金。让我们解释一下这句话。

If you were to take that very expensive CO2 and convert it to a liquid fuel, that comes out to 50 dollars a gallon.

如果你要把非常昂贵的二氧化碳转化成液体燃料，燃料价格将会高达五十美元一加仑。

That's way too expensive; it's not feasible. So how could we bring these costs down?

这太贵了；完全是不可行的。那么我们要怎样降低费用？

That's, in part, the work that I do.

这就是我所做的部分工作。

There's a company today, a commercial-scale company, that can do this as low as 600 dollars a ton.

当前有一个公司，一个商业规模的公司，可以使费用降到每吨六百元。

There are several other companies that are developing technologies that can do this even cheaper than that.

还有其他几个开发技术的公司，还可以进一步降低成本。

I'm going to talk to you a little bit about a few of these different companies.

我要向你们简单介绍一下这些不同的公司。

One is called Carbon Engineering. They're based out of Canada.

其中一个叫做Carbon Engineering，位于加拿大。

They use a liquid-based approach for separation combined with burning super-abundant, cheap natural gas to supply the heat required.

他们使用基于液体的分离方法结合过剩的，廉价的天然气来提供所需要的热量。

They have a clever approach that allows them to co-capture the CO2 from the air

他们发明了一个很巧妙的方法，可以从空气中捕获二氧化碳的同时，

and the CO2 that they generate from burning the natural gas.

也捕获燃烧天然气产生的二氧化碳。

And so by doing this, they offset¹ excess pollution and they reduce costs.

这样一来，他们就抵消了过度污染的影响，也降低了成本。