There are a variety of reasons why what we eat is of concern to environmentalists – waste from animal factories, water use, energy consumption, etc. There is also the question of what is actually healthy for us to eat, and that is what Michael Pollan discusses in the PBS video ‘In Defense of Food’. Pollan posits that the use of real ‘food’ is in decline, and processed products passed as ‘food’ are taking its place. In the video he advocates eating real food, although not too much, and eating mostly plants. It’s an interesting two hours. Bon appetit!