

Chinese carmaker GAC has explored a four-cylinder combustion engine powered by ammonia, a fuel that produces no carbon dioxide when burned, raising the question of why the company would pursue it.
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Ammonia in an engine. Brilliant. Nothing says “clean future” like a fuel that’s toxic, corrosive and smells like a public toilet at closing time. Yes, it burns without CO2, but it throws off nitrogen oxides, and anyone who has ever sat through a drive-by fumes lecture knows where that goes.


