Originally, the atoms of carbon from which we're made were floating in the air, part of a carbon dioxide molecule. The only way to recruit these carbon atoms for the molecules necessary to support life-the carbohydrates, amino acids, proteins, and lipids-is by means of photosynthesis. Using sunlight as a catalyst the green cells of plants combine carbon atoms taken from the air with water and elements drawn from the soil to form the simple organic compounds that stand at the base of every food chain. It is more than a figure of speech to say that plants create life out of thin air.

People eating the western diet of heavily processed food, of lots of meat and added sugar and added fat, and very little whole grains and fruits and vegetables.Populations who eat that way have seriously high incidences of chronic diseases.

Ripe vegetables were magic to me. Unharvested, the garden bristled with possibility. I would quicken at the sight of a ripe tomato, sounding its redness from deep amidst the undifferentiated green. To lift a bean plant's hood of heartshaped leaves and discover a clutch of long slender pods handing underneath could make me catch my breath.

A French poet famously referred to the aroma of certain cheeses as the ‘pieds de Dieu’—the feet of god. Just to be clear: foot odor of a particularly exalted quality, but still—foot odor.

It's estimated that about 30 percent of the increase in grain prices could be attributed to the decision to embrace biofuels, particularly corn-based ethanol. It has done nothing for climate change and the business is in real trouble now with the collapse of oil prices. It's completely dependent on a dollar subsidy and tariff from the government.

We could have a greener economy, even a greener consumer economy by changing the rules - whether it's by taxing carbon or trading carbon, I'm not sure what - but in the end there's just a fundamental problem with the sheer amount we're consuming.

Half of all broccoli grown commercially in America today is a single variety- Marathon- notable for it's high yield. The overwhelming majority of the chickens raised for meat in America are the same hybrid, the Cornish cross; more than 99 percent of turkeys are the Broad-Breasted Whites.