In 1962, an underground fire started in the coal-mining town of Centralia, Pennsylvania. Fifty-three years later, that fire still burns. In this week鈥檚 episode of Reactions, we explain the history and science behind the Centralia mine fire. Does anyone still live there? How could the fire keep burning for so long, and why hasn鈥檛 it been extinguished? From a chemical standpoint, what is fire, anyway?
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