The government has set clear targets to decarbonise the Manx economy over the coming decades. Solar power and onshore and offshore wind look like the best available renewable energy generation prospects but are there alternatives? The Chief Minister doesn’t seem convinced but Graham Fox-Hulme tells us that the answer lies beneath our feet and John Sheppard wants draconian measures introduced to help us lead better lives. Are they right? Is geothermal energy really readily available and if so why is it not being explored? Why aren’t we building houses that use a tiny fraction of the energy to heat?