By William McRae When asked where metals such as nickel comes from, most people would tell you that it is found in the ground. Evidently it is a metal you mine. But what if I told you nickel can actually be grown? What if instead of mining the nickel ore, you were able to farm and harvest it every year? I was a little skeptical too, until I had a chance to sit down and chat with Dr. Bruce Conard, the man behind an unconventional initiative to clean up the surface soils of an Ontario community.

It surrounds us, and sustains us. It is probably Canada’s biggest natural resource - and yet the one that we ignore the most. On this episode of Science Alive, ‘dig in’ to soil science with the Canada Agriculture and Food Museum! In the video - learn how you can build an automatic green bin. It sits right inside your house or apartment - and makes soil… The secret? Worms.