One of the problems is that the US government supports unhealthy food and does very little to support healthy food. I mean, we subsidize high fructose corn syrup. We subsidize hydrogenated corn oil. We do not subsidize organic food. We subsidize four crops that are the building blocks of fast food. And you also have to work on access. We have food deserts in our cities. We know that the distance you live from a supplier of fresh produce is one of the best predictors of your health.

...A one-pound box of prewashed lettuce contains 80 calories of food energy. According to Cornell ecologist David Pimentel, growing, chilling, washing, packaging, and transporting that box of organic salad to a plate on the East Coast takes more than 4,600 calories of fossil fuel energy, or 57 calories of fossil fuel for every calorie of food.

Most of the time pests and disease are just nature's way of telling the farmer he's doing something wrong.

To eat with a fuller consciousness of all that is at stake might sound like a burden, but in practice few things in life afford quite as much satisfaction.

You may not think you eat a lot of corn and soybeans, but you do: 75 percent of the vegetable oils in your diet come from soy (representing 20 percent of your daily calories) and more than half of the sweeteners you consume come from corn (representing around 10 perecent of daily calories).

Every major food company now has an organic division. There's more capital going into organic agriculture than ever before.

There are fundamental tensions between the biological reality of the planet and the economic reality. To some extent you can adapt the economy, create a new set of rules and incentives to send it down a better track, but finally people in the first world are going to have to consume a whole lot less.