@Vladimire Plouzhnikov - Re: Sigh...
The problem is that many people don't bother listening to anything beyond the rants of the "hard line greens" and, just as in many other situations, tar all people who have a vaguely similar philosophy or belief with the same brush as the extremists.
Lewis, as always, goes to the opposite extreme, citing the claims that "renewable power simply can't provide anything like the amount of energy required for any large proportion of the human race to live a reasonably comfortable life" and this "requires most of the human race to remain in miserable poverty", but misses the point that this assumes that to have a "reasonably comfortable life" requires people to engage in some equivalent of the ridiculously profilgate energy expenditure that the USA and Europe indulge in.
I have said it before and I will say it again, we need to use energy MORE EFFICIENTLY! For instance, switching on the air con when it gets a bit warm or the heating as soon as it gets a bit chilly is simple, but it is NOT necessary if we actually put some effort into designing our buildings correctly and getting from A to B can be done much more efficiently than driving vehicles the size of a small truck whilst carrying a single occupant.
No hair shirts are required, no living in houses lit only by a single bulb, no thick jumpers necessary, we are supposed to be an intelligent species, but until we actually start *using* that intelligence instead of just short-sightedly worrying about how much it's going to cost (and how that will affect someone's election prospects or the interests of the big businesses who only pay attention to their dividends and bonuses) we are going to end up screwing ourselves into the ground and not solving the fundamental problem!