A look at man's relationship with Dirt. Dirt and humans couldn't be closer. We started our journey together as stardust, swirled by cosmic forces into our galaxy, solar system, and planet. We are made of the same stuff. Four billion years of evolution created dirt as the living source of all life on Earth including humans. Dirt has given us food, shelter, fuel, medicine, ceramics, flowers, cosmetics and color --everything needed for our survival. For most of the last ten thousand years we humans understood our intimate bond with dirt and the rest of nature. We took care of the soils that took care of us. But, over time, we lost that connection. Our species became greedy and careless. We still depend on dirt, but now we abuse and ignore it. We are destroying our last natural resource with our agriculture, our mining, and our paving over the planet for cities. We turned dirt into something "dirty." In doing so...

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