That version of the story goes something like this: On July 1, 1937, Amelia Earhart and her navigator Fred Noonan departed from Lae, New Guinea in Earhartâs Lockheed Electra 10, on what was to be the longest portion of Earhartâs highly publicized round-the-world flight.
Before the coal is burned, it is pulverized to the fineness of talcum powder. It is then mixed with hot air and blown into the firebox of the boiler. Burning in suspension, the coal/air mixture provides the most complete combustion and maximum heat possible.
Best Answer: The presence of coal is not. Burning coal is depending on who you talk to (generally considered that it is). Coal is essentially heavily compressed organic matter which never had a chance to decay. Burning it releases any carbon which was present in the organic matter at the time of it's death which combines with Oxygen to form CO2. This is not necessarily bad for the environment as it's been there before but it's not ideal for the climate. What is bad for the environment is the particulates produced by incomplete combustion of coal and the sulpher present in certain types.