A natural historian is somebody who looks at something in terms of its relationship to the rest of the natural world. You look at things ecologically. When you see a cow on a feedlot, you don't just see a cow; you see a cow that is eating certain food. You follow that food and that food takes you back to a corn field.

I agree insofar as we eat too much meat. We're eating about 200 pounds per person per year. That's about 9 ounces a day. That's probably more than is good for us and it's certainly more than is good for the environment.

Once you introduce the issue to young people and suggest to them that they have the ability to vote with their forks, either by positively going for certain kinds of foods or rejecting other kinds of foods, they realize that this is a responsibility and an opportunity to shape the world a little bit by their own choices.

In 2008, a year of supposed 'food crisis', we grew enough food to feed 11 billion people. Most of it was not eaten by humans as food, however.

There’s an assumption that if someone writes in the first person it’s self-indulgent and self-regarding. I just look at it as a tool to understand the world and my experience in it. It’s not a tool to understand myself.

...Only the big food manufacturers have the wherewithal to secure FDA-approved health claims for their products and then trumpet them to the world. Generally, it is the products of modern food science that make the boldest health claims, and these are often founded on incomplete and often bad science.

Shake the hand that feeds you.