There are many challenges that are facing the human species. As the human race advances further into the 21st century, some of the crises and issues we face include a rapidly expanding world population, increasing air pollution and in our water supply, dwindling water resources and climate changes. Another growing issue that we as a race need to address is finding ways to sustain our food supply. As farmable land becomes scarcer with increasing populations and a scarcity of farmers to help cultivate our lands for crops, finding alternative methods for growing crops to sustain life becomes a pressing concern.