Louis Armstrong was one of the most influential artists in the history of music. Born in New Orleans, Louisiana, on August 4, 1901, he began playing the cornet at the age of 13. Armstrong perfected the improvised jazz solo as we know it. Before Armstrong, Dixieland was the style of jazz that everyone was playing.
The nation's fleet of over 100 coal plants is responsible for 57 percent of the electricity generated in the U.S., more than any other single electricity fuel source. Coal is typically burned to create steam, which is then piped at high pressure over a turbine, causing it to rotate, producing electricity.
Although coal accounts for about 77 percent of CO2 emissions from the sector, it represents about 39 percent of the electricity generated in the United States. About 27 percent of electricity generated in 2014 was generated using natural gas, an increase relative to 2013.