The greenhouse is driven by three things: economy, flavor, ecology. Where ecology is what's being grown in this micro-ecology that can simultaneously thrive and better the soil/rotation, not just the flavor.
Dan BarberIt takes fifteen pounds of wild fish to get you one pound of farm tuna. Not very sustainable. It doesn't taste very good either.
Dan BarberVegetables deplete soil. They're extractive. If soil has a bank account, vegetables make the largest withdrawals.
Dan Barber