Coal is the Biggest Contributor to Global Warming generating billions of tons of carbon dioxide during combustion.Coal is one of the most abundant fossil fuels available on earth and it is expected that Coal will last another 200 years.The mass usage of Coal and its deleterious effect on the environment makes Coal a controversial choice of Energy.Coal is responsible for 25% of Human Energy Consumption and is the largest producer of Electricity in the world.
Coal causes Human Deaths in the Thousands each year directly through Mining Deaths and Indirectly through Human Diseases like Lung Cancer,Mercury and Arsenic Poisoning.The costs of Coal are artificially low because these costs are passed onto society and not explicity added onto the cost of coal powered electricity or coal products like Steel and Cement.Reducing Coal Usage gradually is a big necessity but given the growing hunger for energy by India and China and lack of a Climate Agreement that looks unlikely in the near future