From John Bainbridge, Ottawa, Ontario, Canada
I can’t help feeling that heating the UK with geothermal energy is just another misguided, silver-bullet solution. Your article reports there are (maybe) 100 years of energy that could be harvested. That doesn’t sound like that much(29 October, p 16).
After 100 years, we would have to tackle the ecological effects of geothermal energy – because there are bound to be some. Maybe a better use of geothermal technology would be to extract the heat that has been dumped into the ground over the past century by London’s Tube trains.
