<p>Sustainable agriculture is quickly becoming the wave of the future as global leaders grapple with the question of how to feed a world population approaching 10 billion. At the UA, researchers are looking up for answers, in the form of vertical farming.</p>

<p>A drought-induced water crisis in Cape Town, South Africa, has Arizonans wondering if a similar situation could happen here. UA water expert Sharon Megdal says it is unlikely, though not impossible.</p>