Centralia, Pennsylvania is a town that's been on fire since 1962!

The fire started with an unauthorized garbage fire that spread to the town's coal mine. The resultant coal fire has been burning underground ever since.

There are an estimated 200 underground coal fires like the one in Centralia that are currently burning in the United States. Thousands more coal fires are burning across the world. These fires alone contribute 48 tons of poisonous mercury into the world's atmosphere every year. An estimate .3% of all the world's carbon emissions come from these fires alone.

The U.S. government has spent over a BILLION DOLLARS so far to put out the coal fires. $42 million has been spent just to relocate the residents of Centralia.