A trio of climate scientists from Occidental College, Claremont Graduate University and the University of California, respectively, has found that after a 50-minute talk outlining the negative environmental impacts of raising and consuming meat, students ate on average 9% less meat over the following three years. In their paper published in the journal Nature Food, Andrew Jalil, Joshua Tasoff and Arturo Vargas Bustamante describe analyzing the eating habits of student volunteers.