There’s a budget tomorrow, and as we reported recently, some energy companies have been putting pressure on the chancellor to increase the carbon price floor, the UK’s carbon tax, currently set at £18 per tonne, which has helped us reduce the proportion of our electricity we get from burning coal, the dirtiest fossil fuel of them all, though if we want to completely phase out coal burning by 2025, something the government has pledged to do, then, according to