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
Brown carbon to reduce their emissions and their effects. Brown carbon has attracted interest as a possible cause of climate change. This class of organic carbon, known for its brownish color, absorbs strongly in the ultraviolet wavelengths and less significantly going into the visible wavelengths. Types of brown carbon include tar materials from smoldering fires or coal combustion, breakdown products from biomass burning, a mixture of organic compounds emitted from soil, and volatile organic compounds given off by vegetation. Simulation models suggest that brown carbon contributes about 19% of the total atmospheric absorption by aerosols, while 72% is attributed to black carbon