B. It turns rotten arugula into clean fuel.

它把腐烂的芝麻菜变成清洁燃料。

There is no cleaner fuel when comparing gasoline and diesel.

汽油和柴油时都不是清洁的燃料。

The cleaner fuel standards will help the environment, and boost lightning science, too.

更清洁的燃料标准将有助于改善环境，同时促进闪电科学的发展。

What Heliogen is doing is making the process of creating a clean fuel clean.

Heliogen正在做的是使制造清洁燃料的过程变得干净。

Mark Viehman is a hydrogen and clean fuels expert at the Paris-based consulting business Capgemini.

马克·维赫曼是总部位于巴黎的咨询公司凯捷的氢气和清洁燃料专家。

Efforts to reduce carbon emissions were previously centered on increasing the use of clean fuel technology.

减少碳排放的努力以前集中在增加清洁燃料技术的使用上。

Much of the reduction in pollutants came from measures to control coal-fired boilers, provide cleaner domestic fuels and industrial restructuring.

通过控制使用燃煤锅炉，更加清洁的国内燃料，并调整产业结构可以大幅减少污染。

Michael, what does this say more broadly about the fight against climate change and the transition to cleaner fuel sources?

迈克尔，这对应对气候变化和向更清洁燃料来源的过渡有什么更广泛的意义呢？

To do this, they're looking at using cleaner fuels like electric and wind power as opposed to burning fossil fuels.

为了做到这一点，他们正在考虑使用更清洁的燃料，如电力和风能，而不再燃烧化石燃料。

At the same time, U.S. officials hope to change former President Donald Trump's March 2020 cut to clean fuel standards.

与此同时，美国官员希望改变前总统唐纳德·特朗普在2020年3月削减清洁燃料标准的做法。

One is the energy transition so that for transport, for industry and power plant, we can move to cleaner fuels.

首先是能源改革，我们可以让交通工具、工业和发电厂采用更清洁的燃料。

Climate and energy experts have long sought to study ways to limit the economic harms of transitioning to cleaner energy fuels.

气候和能源专家长期以来一直在研究如何限制向更清洁能源过渡所带来的经济危害。

It's a much cleaner fuel than petrol or diesel.

它是一种比汽油或柴油清洁得多的燃料。

Direct air carbon capture, nuclear fusion, green hydrogen and cleaner fuels for planes.

直接空气碳捕获、核聚变、绿色氢和更清洁的飞机燃料。

And countries like Namibia are at the forefront of innovationon clean fuels like green hydrogen.

纳米比亚等国家处于绿色氢等清洁燃料创新的前沿。

And is now a potential clean fuel of the future for trucks, for planes, ships and trains?

现在是未来卡车、飞机、轮船和火车的潜在清洁燃料吗？

So, you know, in theory, you can create this sort of clean hydrogen fuel using wind and solar power.

所以，你知道，理论上，你可以利用风能和太阳能来制造这种清洁的氢燃料。

But Hyundai hopes that as governments restrict carbon emissions - and the cost of producing the clean fuel drops - the numbers could start to add up.

但现代汽车希望，随着政府限制碳排放--以及生产清洁燃料的成本下降--这些数字可能会开始上升。

Climate activists say hydrogen is a clean fuel for energy and can possibly be used in place of fossil fuels such as coal, oil or gas.

气候活动人士表示，氢是一种清洁的能源燃料，可以用来取代煤炭、石油或天然气等化石燃料。

A biofuel made from waste, for example, with renewable energy to power the production, would have little or no greenhouse gas production, making it a clean fuel.

例如，若在生产由废物制成的生物燃料时使用可再生能源为其提供动力，就几乎不会产生温室气体，那么这种生物燃料就是一种清洁燃料。