On Feb 21, 8:03 pm, "Clive Coleman." wrote:
In message . com,
writesClearly where there are wires they will be able to be seen if
you look but what is better a view with wires or an atmosphere laden
with pollutants which we (now) know make people (especially children
and the elderly) suffer with breathing problems and die prematurely?

Can't agree with the above. Until recently diesel vehicles put out
small particles of soot called smoke which smelled rather unpleasant but
wasn't dangerous. What has always been dangerous were car exhausts and

Not quite true. The smoke was mostly soot but that carbon particles
often had small amounts of unpleasent organics in and on them. And
lets face it , having smoke everywhere isn't pleasent anyway whether
poisonous or not.

diesels were always given a bad name because you could see the smoke,
but now that science has proved a better answer people with petrol
engine vehicles don't like it.

Diesel engines are still dirty. Sure , they might come out of the
showroom with exhaust emissions that would have birdies tweeting , but
a few years of stop start motoring and old filters, and most diesel
engines start belching black gunk. In theory MOT and other tests
should prevent this but I think we've all seen enough buses , taxis ,
white vans etc blowing crap out the exhaust to know something isn't
working properly.

B2003