Coal-fired pizza in an Arizona chain and one more in Las Vegas. The growing popularity of coal-fired pizza in the 2010s was identified as a major market for anthracite coal suppliers, most of whom are in Pennsylvania's Coal Region, who generally see a declining market due to alternate industrial and home heating fuel sources. Concerns have been raised about particulates, sulfur dioxide and CO emissions from coal-fired pizza ovens. Coal-fired pizza Coal-fired pizza is a pizza style in the United States. New York-style pizza and New Haven-style pizza are often cooked in coal-fired pizza ovens. A coal-fired oven can reach and cook
Coal liquefaction well as from generation of necessary process heat and electricity inputs to the liquefaction reactors, thus releasing greenhouse gases that can contribute to anthropogenic global warming. Especially if coal liquefaction is conducted without any carbon capture and storage technologies. There are technically feasible low-emission configurations of CTL plants. High water consumption in the water-gas shift reaction or steam methane reforming is another adverse environmental effect. Pyrolysis of coal produces polycyclic aromatic hydrocarbons, which are known carcinogens. On the other hand, synthetic fuels produced by indirect coal liquefaction processes tend to be 'cleaner' than naturally occurring crudes, as heteroatom (e.g. sulfur)