It won't be as easy to go back to coal for heating, at least short term. In Poland for example, one of the criteria to get a subsidy for switching away from coa

It won't be as easy to go back to coal for heating, at least short term. In Poland for example, one of the criteria to get a subsidy for switching away from coal for heating was to dispose of the old coal oven. I did that few months ago and switched to gas heating instead. If the prices of gas go up dramatically (and given the current situation that's likely), we don't really have an alternative at the moment.