Directed by Sturla Gunnarsson, this film takes the form of a lecture in which the iconic environmentalist (and prairie dog columnist) David Suzuki sums up his life’s work and delivers one final warning that with our growing numbers and burgeoning technology humanity has become a force of nature capable of altering our environment on a global scale.

Force of Nature plays tonight and Friday night at the RPL Theatre at 7 and 9 p.m. both nights. Here’s the trailer.