The Without Hot Air site seems to have got its sums wrong. It continually makes the point that we'd need to cover the whole UK in renewable energy generation, a

The Without Hot Air site seems to have got its sums wrong. It continually makes the point that we'd need to cover the whole UK in renewable energy generation, and that still wouldn't be enough. However, we already generate 7.5% of our energy from renewables and clearly 7.5% of the country isn't covered in windfarms/solar/biofuels. Therefore he must have made a mistake somewhere: if reality disagrees with theory, the theory must be wrong.