For what it's worth, I watched a 'Steam Trains from Around the World' DVD round my friends a while ago. It was made last year I believe. Cuba, China, Argentina, South Africa and a few others were 'visited'. You have to see the clouds of smoke from the current generation trains to believe it. The majority of working steam trains in these countries are oil-fired. The pollution levels must be astronomic, yet I don't see anyone having a go at them. Interestingly, Germany also has some, not as many as the others, which they use on their 'tourist' runs. The worst was the Chinese, as they appaently often use huge engines, double-headed, to move ore trains around the country. It's not just the odd train, it is a constant stream of them, day in and day out. I don't think what our little island puts out holds a candle to it.
This is the crux of the argument as far as the UK is concerned. The extreme environmentalists get a pipedream into the heads of government, and this sets the hare running for excuses to introduce what are, in essence, still more stealth taxes.
Everybody is aware that the likes of China are not going to cut down their pollution and adversely affect their own economy at the whim of western goverments.
In addition, rain forests are being destroyed to clear more areas for evolving countries. How do you tell them it is wrong, when for years we have been taking their hardwoods to gratify our needs to display our own affluence?
Unless the developed nations are prepared to kill their economies dead, road transportation (private and commercial) is here to stay.
The only way that we are going to get out of trouble is by widespread nuclear energy and support for road vehicles that will encourage the manufacturers to embark on clean technology.
The USA will immediately pounce on any eastern countries who try to go nuclear (USA believing they themselves are the only ones to be trusted that it will be for peaceful purposes only), and China and Russia will continue to burn their own coal in massive volumes; which they do anyhow. And isn't the UK currently carrying out a feasibility exercise to regenerate our coalfields?
Round and around we go, merrily chasing our own tails, until we end up in a panic; grabbing at answers which have not yet had their questions raised.
You were right, Robbie, "Oh, what a tangled web we weave.........."