Ironically, one of the reasons to consider raising backyard chickens is because of the sheer number of chickens being produced commercially today. Current estimates are that 50 billion chickens are "processed" yearly; and while a chicken dinner used to be something for special occasions, chicken has become one of the world's main dietary staples.
However, some experts warn that this demand isn't sustainable.
"The increased production is the result of concentrated farming methods, via which farmers produce chickens according to company specifications," explained Roger Horowitz, a historian of American business, technology and labor and an expert on the nation's food supply. "There’s room to expand these methods. However, they often generate community opposition due to environmental impact, especially groundwater pollution from chicken waste. So, technically, it’s possible, but practically expanding…