Soil isn't one size fits all. It may look the same under your feet - but under a microscope, that's a different story. A plant's roots, tiny bugs - these things can tell one soil from another quite easily.
Americans drink 400 million cups of coffee a day. Where does all of that coffee come from? Brazil is the world's largest producer and exporter of coffee. But environmental changes could harm Brazil's coffee plants.
Corn farmers in Minnesota and across the northern Corn Belt often must plant in cold, damp spring soils that can slow early season growth. This can impact yield at harvest time—and farmers' bottom lines.
The Earth's critical zone isn't called critical for nothing. Known as our planet's outer skin, it is essential for human survival.