I know, it's absolutely baffling to me, but I know loads of people in Poland who still have coal fired boilers for heating. When asked about this, they say that there is no natural gas pipeline anywhere near them(and local council isn't interested in putting one in), and not everyone has space for an LNG tank in their garden(or even a garden) and heating with electricy would literally make them bankrupt very quickly. So....coal is the only option that everyone can afford.