Depends on the place, depends on the method, depends on the scale. Beef and dairy can be a way to convert grasslands to human-consumable calories or be used to

Depends on the place, depends on the method, depends on the scale. Beef and dairy can be a way to convert grasslands to human-consumable calories or be used to convert overproduction of grains (necessary as insurance against crop failures) into high quality protein, but it can also be a way to degrade marginal ecosystems and convert groundwater into an unhealthy national diet.