In the 21st century, it seems waste will be the new food.

Once the sole purview of the profession of civil engineering, infrastructure- which includes the management of water, waste, food, transport, and energy- is taking on extreme relevance for landscape planning and design practices in the context of changing, decentralizing structures of urban-regional economies. Food production and energy networks can no longer be engineered without considering the cascade of waste streams in the cycling of raw material inputs…Put simply, the urban-regional landscape should be conceived as infrastructure.

Pierre Belanger, Landscape as Infrastructure