Airing tonight as part of the PBS series Independent Lens, check out DIRT! The Movie, a documentary about dirt -- what it is, how it got there, and why it's important.
Dirt is very important stuff -- it contains a lot of microorganisms working together to maintain ecosystems. Dirt is critical of course to food and other plant growth, but it's also a critical part of the overall ecosystem -- it processes rainwater and has effects on climate. In DIRT! The Movie, we learn about what dirt actually is, how... READ ON