Professor Vörösmarty's research centers broadly on human-environment interactions. He has led interdisciplinary study teams using earth system models to assess: the impact of water resource management worldwide and how they generate downstream coastal zone risks; strategic U.S. water-food-energy risks; and, global threats to human water security and aquatic biodiversity. The Environmental Sciences Initiative, which he directs, hosts the internationalNASA GLOBE program office through 2029.