Shell made a film about climate change in 1991

Re:Shell made a film about climate change in 1991 by adrianN on Monday May 08, 2017 @02:39AM (#14289695)

It is my understanding that with internal combustion engines there is a trade-off between NOx and CO2. The hotter you burn, the more efficient the engine, but you also create more NOx. Volkswagen chose to tune their engines for fuel consumption, reducing GHGs, but tried to cheat their way around the illegally increased NOx.

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Re:Shell made a film about climate change in 1991 by libeclipse on Monday May 08, 2017 @02:57AM (#14289761)

Isn't that the whole point of the catalytic converter?

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Re:Shell made a film about climate change in 1991 by adrianN on Monday May 08, 2017 @04:16AM (#14290016)

For Diesel engines you typically use Ammonia ("AdBlue") to get rid of NOx. Gasoline engines can use three-way catalytic converters.

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