But Longannet’s real crime is that the 4.5 million tons of coal it burns each year make it the biggest CO2 emitter in Scotland. Which is also, of course, why we will hear nothing about Britain’s energy future in this election: because all the major parties are signed up to the policy set in train by Ed Miliband’s Climate Change Act committing us to reduce our “carbon” emissions by 80 per cent within 35 years.