The U.S. has been the biggest emitter of greenhouse gases in history.

美是史上最大气体排放家。

Is the world's largest carbon dioxide emitter seriously doing that?

这个世界上最大二氧化碳排放是要动真格吗？

It means more independent organizations are measuring greenhouse gases and identifying big emitters.

这意味着更多独立组织正在测量气体并确定大型排放者。

Well, the biggest gap was really with the major economies, the biggest emitters in the world.

最大问题出在全球主要经济体和最大排放身上。

If shipping were a country, it'd be the sixth largest emitter of CO2, trailing just behind Japan.

果运输行业是一个家，它就是二氧化碳第六大排放，仅于日本。

It's detected 50 super emitters across the world, mostly coming from fossil fuel, landfill and agricultural facilities.

它在世界各地探测到50个主要排放地，大部分是化石燃料厂、垃圾填埋点和农业设施。

Indonesia, for example, chafes at its reputation as the world's third-biggest emitter of carbon (a ranking it disputes).

以印度尼西亚为例，因对世界第三大碳排放家（该排名有争议）这个排名感到气恼。

If the world's wasted food was a country, it would be the third largest emitter of greenhouse gases.

果全世界浪费食物是一个家，那会是气体第三大排放。

Many of these buildings will be made using cement, a massive emitter of greenhouse gases.

其中有许多建筑将使用水泥制成，它排放了大量气体。

It's the first time that India, the world's fourth biggest emitter of carbon dioxide has announced a net zero target.

这是印度(世界第四大二氧化碳排放)首宣布净零排放目标。

India, the world's third largest emitter, and Russia, the fourth largest, also made no new commitments.

世界第三大排放印度和第四大排放俄罗斯也没有做出新承诺。

It is the largest emitter of methane gas.

它是最大甲烷气体排放。

And we're also prodigious emitters of nitrogen dioxide and methane.

我们也是二氧化氮和甲烷巨大排放者。

The emitter, the base, and the collector.

发射极、基极和集电极。

ArcelorMittal, the world's biggest steelmaker and one of Europe's largest emitters, expects to invest an extra $10bn to cut carbon by 2030.

安赛乐米塔尔是全球最大钢铁制造商和欧洲最大碳排放者之一，该公司预计将额外投资100亿美元用以在2030年前减少碳排放。

Investigators exposed the chips to alpha emitters with different levels of activity.

研究人员将芯片暴露于不同活性水平阿尔法辐射源。

These work by shooting electrons out of an emitter at a phosphor-coated screen.

这些通过在荧光涂层屏幕上从发射器射出电子来工作。

However, there are concerns that heavy emitters may find loopholes in carbon trading systems.

然而，有人担心重度排放者可能会在碳交易系统中找到漏洞。

Such kind of a microreporting has motivated some of the largest emitters to change behavior.

这种微报告促使一些最大排放者改变行为。

They are the largest carbon emitters in the world.

他们是世界上最大碳排放。