The rankings aim to examine 'how universities are improving our world' (Pic: Getty Creative) gettyThe world’s most sustainable universities have been revealed in the Times Higher Education Impact Rankings. And the results paint a gloomy picture of progress towards sustainability in the U.S., with a significant drop in the performance of many higher education institutions. “It moves beyond the more traditional research-focused rankings to look at far broader issues — examining how universities are improving our world,” said Phil Baty, chief global affairs officer for Times Higher Education, which also publishes a more conventional higher education ranking. But while the U.S. dominates conventional university rankings, the Impact Rankings show a very different picture, with American higher education not only struggling but going backwards. “Some American universities are doing well in a number of key areas, showing real leadership on the vital issue of sustainability, particularly Arizona State University (Tempe),” said Baty.