IHDP has an international set of thousands of scientists in its network, drawing on expertise from high-level institutions all over the world. IHDP welcomes a wide-array of disciplines from within the social sciences and explicitly builds bridges between the natural and social sciences on issues of global environmental change. IHDP tackles global environmental change issues that are critical to both science and policy and produces cutting-edge research that is directly relevant to current policy debates at numerous political levels.