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I have read that the least polluting vehicle is the one you already have - whatever pollution it causes while it still runs is still less than the pollution caused by the manufacture of the vehicle you replace it with ...
 
Afternoon all

Any petro-chemical engineers on here?

I believe that diesel oil is a by-product of the process which distils crude oil. By that, I mean a component which is automatically produced, regardless whether or not it is wanted.

If this is true, what will we do with it if we all stop using it for road fuel?

Cheers

Dave
 
A month or two back I read about a report by a reputable (unbiased?) body which had concluded that a large part of the particulates in urban air was from the wear of tyres, brakes, and the road surface - and that diesels were contributory but not necessarily the greatest factor.
More information needed! Unfortunately, politics will probably drive the decision as much as scientific findings
 
Duncan A":1lcnaekj said:
A month or two back I read about a report by a reputable (unbiased?) body which had concluded that a large part of the particulates in urban air was from the wear of tyres, brakes, and the road surface - and that diesels were contributory but not necessarily the greatest factor.
More information needed! Unfortunately, politics will probably drive the decision as much as scientific findings
Quite likely. I don't think they included things like tyre wear and pollution when they promoted diesel cars.

The last time I had new tyres the fitter said that front wheel drive diesel cars get through tyres a lot quicker than petrol engines. He said this was due to Diesel engines being heavier than petrol.

It's only a matter of time...

https://www.theguardian.com/environment ... ution-case
 
Well there's no question that extra taxation will appear and be taken up by numerous councils even if just another easy way of extracting cash under a "green" banner, just as they do from camera vans but it's also quite likely that there will be delays until after Brexit when "adjustments" can be made to legislation.
 
I know that a few years ago a major study on comparative vehicle pollution was based on the premise that all cars had one person in them and all buses and coaches were full - so the per capita pollution was dramatically skewed. (Possibly by Greenpeace - they seem to have an unfortunate habit of making figures say what they wish them to.)
 
Lons":1sdkhw6j said:
... another easy way of extracting cash under a "green" banner, just as they do from camera vans ....
It's a bit tedious this endless cynicism. You do need to look at facts and not just groan about things you don't like - can't be doing you any good!
Speed cameras are highly effective in reducing speed, not just a cunning wheeze to extract cash. If that was the case they wouldn't put them in obvious speed problem places (built up areas 30 mph) they'd put them on safe main roads where everybody is slightly over the limit.
I think everybody who gets caught (including me) usually admits that the cameras were well sited in places where people should be driving slower, and as a result they drive more slowly in future.
Green issues are real issues and reductions in pollution saves lives and health bills improves quality of life etc. enormously.
I don't see the point in just not believing anything you don't like, especially if taken up by Greenpeace.
 
I realise everyone has their own perspective on quasi-facts (unless you know a lot of maths you're gonna find facts tricky ...can you prove 1+1=2 ? ...in every scenario ? .. if so, you've not got any rigour) and how they perceive stuff like science and morality and how we are possibly trashing the planet for future generations.

But why not chill...who will know what will be ...this might be rubbish :

http://inhabitat.com/groundbreaking-mag ... -10-years/

but it might not be.

The whole 'your car polluted more than mine' or 'your car costs more to run than mine' is a laugh...who gives a hoot ? Just get what you reckon will suit you best for the next decade or so.

p.s. Dont think Ironman is just silly fun..its not much of an extrapoltation from 'current science' ...where do you think they get the ideas from? )

edit : after a bit of digging it seems MIT lost their funding to progress fusion (why?) but good old South Korea (wonder who helps them to accentuate the north / south divide!) have sustained over a minute of high productivity fusion..

http://inhabitat.com/south-korea-sets-t ... an-energy/

so maybe France's $40bn planned fusion reactor will be smaller, cheaper, sooner?

http://www.electronicspecifier.com/powe ... pproaching
 
Jacob":3ap5s41f said:
Lons":3ap5s41f said:
... another easy way of extracting cash under a "green" banner, just as they do from camera vans ....
It's a bit tedious this endless cynicism. You do need to look at facts and not just groan about things you don't like - can't be doing you any good!
Speed cameras are highly effective in reducing speed, not just a cunning wheeze to extract cash. If that was the case they wouldn't put them in obvious speed problem places (built up areas 30 mph) they'd put them on safe main roads where everybody is slightly over the limit.
I think everybody who gets caught (including me) usually admits that the cameras were well sited in places where people should be driving slower, and as a result they drive more slowly in future.
Green issues are real issues and reductions in pollution saves lives and health bills improves quality of life etc. enormously.
I don't see the point in just not believing anything you don't like, especially if taken up by Greenpeace.

That's simply bullsh*t Jacob and more evidence that you just accept what you read as fact. Instead of accusing other people of being cinical you should look back at some of your own posts over the last few years. I put it to you it's the pot calling the kettle black. (hammer)

Firstly I am a supporter of speed cameras, not a cinic. They are effective but the proviso to that is that they should be sited appropriately in accident blackspots, to save lives. Whilst this is usually but not always the case with fixed cameras, the same can not be said of mobile vans although I can only speak from personal experience of course.

Not far from me there are 2 locations where a mobile van has been parked no less than 23 times in the 18 months up to December 2016, ( it was there again last week). Neither of those locations have had a single incident never mind a serious accident in the last 5 years whilst the opposite is true of the 60 mile stretch of a main A road running through our village which has had 9 serious accidents, including one with 3 fatalities over that 18 month period during which the van was deployed on only 2 occasions. When asked for reasons, the answers received are scripted and evasive. The road has some serious speeding issues and parts are winding and hilly with blind corners which makes it perfect racing ground for the numerous motorcycle hoards every summer. It also has more than it's far share of HGVs, tractors and slow doddering pensioners on the market garden routes.

Our county councillor obtained the figures from the authorities, with difficulty, as we have had a campaign for years for the vans to be sited instead where they are likely to save lives, they do after all call them "safety cameras" do they not! They don't take a blind bit of notice because the revenue they get from those 2 sites is obscene, ( I know the rough amount but can't prove it so won't say).

To put that into perspective: Of course the motorists were over the speed limit, no dispute but 93% of those fined were under 35mph, ( a friend was caught a few months ago doing 33 ). One location is just before you reach the end on the 30 limit and immediately before you must accelerate to join a busy dual carriageway and the other out of town where there are only 3 houses well set back from the road and almost no pedestrian traffic. The road is also equivalent to 3 lanes wide btw. Many local residents believe that stretch of road should be 50 rather than 30mph.

I found out last week that the council which currently funds the vans to the tune of £110,000 is withdrawing that despite the fact it receives 17% of the fines back and always receives more than it pays but when talking to a policeman friend a few days ago he told me that another partnership in the north where that happened they immediately doubled the number of vans and employed extra staff to cover the shortfall in revenue. He works for that force and I have no reason to disbelieve him.

I got a ticket 46 years ago for doing 33 in a 30 limit, I contested it and it was thrown out, I have never had one since and try very hard to adhere to the limits but can't say that's 100% as it's easy in a modern car to go too fast.

The above is fact not media reporting and in my area, I suggest you look closely at your own before believing everything you read on the internet of whatever rag it is that you subscribe to.

Bob

Edit: Who the hell mentioned Greenpeace - certainly not me! :roll: and thanks for concerning yourself with my welbeing but no need, I'm in the best of health thank you! :wink:
 
I have always found that the best way to solve a problem is by taking the time to DEFINE the problem in as brief a way as possible. Once defined then the solutions come more easily.

The current definition revolves around pollution from motor vehicles mainly in cities. Thus the problem could is best defined as How might we make cities cleaner and more pleasant places. Several ideas come to mind eg wear a mask..uggh. Only use hydrogen cars....dangerous. and many more.

However, the most obvious and simplest solution is to ban all internal combustion engine motor vehicles from the cities for a 3 mile radius from the centre.

What would replace them:-

Golf carts
Milk floats
Electric bikes
Electric cars
Electric walk ways
Walking on roads and pavements
Push bikes

Exceptions might be needed for very heavy loads.

Most people can easily walk 3 miles in 1 hour. A golf cart would do that in about 25 minutes. Trains would still be used but buses would be disallowed.

As a solution this has many benefits but is probably too simple for the body politic and unpalatable for the companies selling fuel.

It is after all a matter of WILL and not just idle chatter as an excuse for confusion and no action.
 

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