: Soil acts like a library of Earth's past. By studying its layers and colors, scientists can read stories of ancient climates, volcanic eruptions, and even the rise and fall of civilizations.
: Some of our most vital life-saving medicines, including penicillin , were originally discovered in the organisms that live in the dirt. Dirt as a Global Hero : Soil acts like a library of Earth's past
Far from being "dirty," soil is one of our most important tools for fighting climate change. Unearthed: Five Things You Didn't Know About Dirt : Soil acts like a library of Earth's past