Soil is pretty remarkable stuff. It provides us with 95% of our food, helps regulate the earth’s atmosphere, and It’s a bigger carbon sink than all the world’s forests combined. In fact, it enables all life on this planet to exist. So why do we treat it like dirt? Guardian journalist Josh Toussaint-Strauss finds out how we’re destroying the earth’s soil, but also discovers some of the progress we’ve made in the race to protect it.