The world is gaining weight and becoming less healthy, and global dietary choices are harming the environment, according to a new research report. Those are among the findings of a paper co-authored by David Tilman, a professor in the Bren School of Environmental Science & Management, and Michael Clark, a graduate student at the University of Minnesota, where Tilman is a professor. In “Global Diets Link Environmental Sustainability and Human Health,” published today in the journal Nature, the researchers find that rising incomes and urbanization around the world are driving a global dietary transition that is, in turn, diminishing the health of both people and the planet.