Explores how milk is produced and pasturized. Examines the menagerie of animals that provide milk. Also explores substitute milk products such as soymilk.

Eggs are considered by many to be one of the most affordable sources of protein available. Chart the journey of the egg from henhouse to breakfast table. Take a trip to massive Iowa farms, where millions of eggs travel from the hens to the delivery trucks without ever being touched by human hands. Next experience what it's like at cage-free and pasture-raised farms, where chickens have greater freedom and more room to roam. Get a look at the world's...

Discover how air, water, earth, and fire are transformed into clean, reliable sources of heat, electricity, and even automobile fuel, and take an in-depth look at solar, wind, geothermal, biofuel, and tidal power.

The potato is among the most versatile, nutritious, and diverse foodstuffs in the world. Learn some new things about this amazing crop, from the potato's mysterious origins in the South American Andes to its prominence in the ethnic enclaves of New York's Lower East Side. In Northern Maine, meet a farmer of exotic potatoes, including blue, green, pink, and dark purple varieties, witness how large-scale potato producers slice, dice, freeze, and dehydrate...