On Wed, 12 Aug 2009 16:47:07 +0100
Bruce wrote:
Well, as usual, you have comprehensively missed the point. The next

So have you. Catalysed petrol engines have been pretty clean since the 80s.
Saying that soon diesel engines will be as clean as petrol (ie they're not
yet) is just laughable. This is 2009 FFS, not 1985! Crap from vehicle
exhausts should have been a problem solved 20 years ago.

particulates. The oxides of nitrogen are more of a problem for petrol
cars.

Which is what the catalysts are for.

The legislation that is being tightened is that for pollutants in city
air. Obviously, the sources for these include cars, vans, lorries,
buses, trains and aircraft as as well as other industrial and domestic
sources. But the legislation is about air quality, not about
emissions from individual vehicles.

Err yes, but individual vehicles contribute towards air quality. And if I
had the power I'd say sod diesel engines altogether , sod the extra CO2 and
mandate petrol or some sort of spark ignition engine used in all vehicles
unless it simply wasn't possible (eg in high flammability risk areas or the
like).

B2003