Last year because of diesels CO2 emissions fell by 5%. The year before that 4.5%. There is a constant 0.00000001% NO and NO2 in the ait (NOx). Petrol engines produce as much NOx, and more NOx.
We can turn biodiesel into biopetrol in a chemical factory – and turn petrol into a carbon 0 fuel – it takes in as much CO2 to grow, and it releases when burnt.
Water will diesel – at 10 atmospheres rather than 8 for diesel fuel. A totally carbon free, free fuel. This science was told me in 2001, or a PhD at Sheffield University. So the water diesel – the totally carbon free energy source.
1 H2O+O2+TU->He+O3+E2 No NOx
So we produce ozone – like breaking aves on the sea shore: the cleanest air around. Like ozone rich air in the countryside.
For oil diesels, we introduce a helical twist at the end of the exhaust.
So nitrous acids dribble out of the exhaust. The are not breathed in by pedestrians. They run harmlessly into the sewers. And the pressure drop is not measurable – we just remove the NOx. Do water diesels – they run off regular river or tap water.
A diesel engine, our own working, paid for nuclear fusion engine on Earth.