365111 external_news 1421415265 1475893646 More than half the world's population can be found in urban areas. "Cities are very much the dominant habitat of our species," writes Jason Vargo, SCaRP PhD alumnus, in the Journal of Environmental Studies and Sciences. Vargo, a public health scientist and urban planner at the Nelson Institute for Environmental Studies and the Global Health Institute, argues that humans, at least in current population numbers, can no longer survive in solely rural lifestyles. To live sustainably, people need to embrace their inner urbanites—and recognize our species not as Homo sapiens, but "Metro sapiens". 

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