Electric vehicles are quiet and spew no emissions.

电动车安静而且不排污。

youdao

And it also has nearly no emissions of the greenhouse gases causing climate change.

而它也几乎没有引发气候变化的温室气体排放。

youdao

Driving it was very similar to any other automatic city car, except there was no exhaust system and no emissions.

感觉和其他自动挡轿车一样，只不过它没有排气系统以及任何废气排放。

youdao

United States Agriculture Secretary Tom Vilsack said no one single nation can fight agricultural greenhouse gas emissions and increase food production at the same time.

VOA: special.2010.01.05

Clearly, if I did nothing more, but I took every car, doubled its fuel economy, its emissions would go to 50% of what they are now, no other changes being made.

显然，如果我什么也不做，但是我把没量车的汽油价加倍，汽车废气排放量就会是现在的一半了，别的不会有什么改变。

麻省理工公开课 - 固态化学导论课程节选

The authors say the current fossil fuel business model assumes that there are no emissions limits.

BBC: Firms 'own unburnable fossil fuels'

Wind and solar produce no emissions, fuel costs nothing, and there are no major health or environmental dangers.

FORBES: Using Robots to Improve Nuclear Safety

In Pennsylvania for example, the Department of Environmental Protection (DEP) has found that there are no emissions from Marcellus shale activities that reach levels harmful to human health.

FORBES: PSEHE: Where Ideology Trumps Reality