Rock Doc

I was raised in the Baptist church. As a grade school child, I memorized the books of the Bible. Maybe because of that personal history, when I started to study geology I didn’t resist memorizing the many pieces of the geologic time scale. The next to the last piece of geologic time is the Pleistocene Epoch (known informally by many as the Ice Age). It is followed by the Holocene Epoch (the warm time we are living in now.)

The Holocene Epoch has seen the rise of human civilization. It is the time when people around the world started to shape the surface of the Earth through farming. From the k...