Wow. This unassuming, even occasionally goofy documentary packs one hell of a punch. It aims to be a sort of follow up to "An Inconvenient Truth". But in some ways this is arguably an even more powerful film.
It asks a couple of simple questions, and finds answers that are so disturbing that it's the rare film that had an immediate impact on my behavior. Basically the film asks "how much does modern animal farming contribute to global warming and other pollution problems?" And the answer is, more than cars, trucks, planes and all other transportation combined. Maybe a LOT more depending on what metrics you use. It also asks, 'given these facts, why are no major environmental groups aggressively trying to change how we farm and eat, the way they're trying to change how we drive or power our houses? ' The answers are several and disturbing, and there's a bit of the thriller in how the filmmakers get sources to explain, or more chillingly suddenly clam up on camera as they realize what's being asked.
At times the film seems so personal and home-grown that I might have tended to dismiss it as the work of someone on the fringe, but doing some follow up reading it became clear that all this is pretty well grounded in solid science. (There are a some controversial claims here, but what becomes clear on further looking is that the basic points are hard to dismiss. For example, there's a review on here questioning the film's numbers about the greenhouse effect of methane. But if you go to the film's website, they list almost all the claims in the film, explain where they come from, and give links to the paper or article. In the case of methane it's from a NASA study on the upper atmosphere -- hardly some wild eyed fringe group.)
And some of the facts themselves are rather astounding. In a world short of clean water, do you really feel OK eating a burger that takes 660 gallons of clean water to produce?
Like all the best 'issue' documentaries, this will likely leave you examining your own lifestyle choices in a new light. What more can one ask from a 85 minute film?
