This is a good documentary on the subject of "dirt." I strongly disagree with the info on climate change, but I do agree with most of what is presented in the movie. Conventional agriculture is destroying the soil, but it doesn't have to be that way. Organic agriculture is superior in every respect. Here it is. https://www.hulu.com/watch/191666
It really is an excellent movie. The "bonus features" on the DVD include 2 hours of in-depth interviews ... we particularly liked Vandana Shiva's thoughts. Might should be required watching material for the world.
