In June, the Michigan Environmental Council released a report showing that the state’s oldest coal-fired power plants cost $1.5 billion annually in health care costs and damages – the equivalent of $500 annually for a family. We pay for that in our health care premiums and copays. It is not reflected in our electricity rates, nor is it ever cited by clean energy opponents when they compare the costs of various energy sources. But it should be. Dirty air costs us, new reports increasingly show.