People complain that cities don't have fresh, sustainable food, but it's just not true.

What we are doing now with our trucks and our food is bypassing the cities and taking them straight to nongovernmental organizations, who will distribute the food to people in the rural areas.

This food is well-known in big cities, but there wasn't (a restaurant) here. I saw a void. Iowa City is diverse. There are all different kinds of people.

If you look at the carrying capacity of agricultural areas throughout the world, their ecological habitats are changing. So I think we're looking at - in our lifetime - great collapses of food services.

We need the humbleness and clarity to see that our food, while benefitting from technological advances, has benefitted even more from free ecological resources: Cheap energy, lots of water everywhere, and a stable climate.

Sustainable development requires human ingenuity. People are the most important resource.