The Carboniferous Period – Coal and Giant Insects

Trees evolved the ability to grow bark at the beginning of the carboniferous period (360 million years ago) but fungi took 50 million years to evolve the ability to digest it. As a result, most of the coal we have today was formed in this period.

When coal mines ignite – The city on top of a fire and the door to hell

Centralia, PA When you first reach Centralia, Pennsylvania, it looks like a standard semi-abandoned town. Maybe one that had its major route of through traffic diverted, and slowly died. Then you notice the strange cracks in the roads and the smoke billowing from the ground. Because in fact, Centralia is not your typical abandoned town, it’s an abandoned town on top af a huge fire.