As much as it may surprise the average person, factory farming is the engine that powers industry. Grain flows in, animals are turned into products at speed, and an enormous volume of waste and runoff flows back out. The sheer scale of this production is insurmountable.
But the real weight pressing down on the industry is the treatment of animals, especially the jarring ways in which factory-farmed livestock are reared.
So how, exactly, do these factory farms function? And how many animals find themselves inside? Click on to find out.