Food is one resource. Energy and topsoil are others, needed for food production. Thanks to (U.S.) government subsidies for farming, farmers can purchase those r

Food is one resource. Energy and topsoil are others, needed for food production. Thanks to (U.S.) government subsidies for farming, farmers can purchase those resources unusually easily; some argue that this will lead to faster depletion of those resources since farmers aren't under sufficient economic incentive to conserve them.