The popularity of meat and dairy-based diets and the explosion of the biofuel industry (which competes with actual food production), are putting a strain on arable land. Climate change–which estimates predict will reduce global crop production by 9 percent over the next few decades, adds even more stress.
One solution, claims Joachim Sauerborn in an article published by the American Society of Agricultural and Biological Engineers, is skyfarming. Indoor crop production in multi-story buildings could help boost food crop productivity without increasing arable lands or those pesky seasonal interruptions. An aeroponic system supplies roots with nutrient-rich mist. Natural sunlight and other systems do the rest.