Was I the only one cheered up by all your dire warnings of a future without hydrocarbons, uranium, cars and so on?

This would also be a world largely without air pollution, invading American armies, death on the road, plastic bags, industrial food, tourism, travelling salesmen and, except on particularly blustery days, Dale Winton. So what鈥檚 the problem again?

Postscript

Roger Davidson, London

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