HEI supports research across the globe. Although a majority of HEI’s studies have been in North America, important additional scientific insights have been provided by studies in Europe, Latin America, and Asia. Science to understand air pollution health effects is much needed in China, India, and developing Asia, where air pollution from a broad range of sources directly impacts the health of local and regional populations, is transported to Japan and the Western United States (affecting the health of populations there). Air pollution originating in Asia also contributes a large percentage of global greenhouse gas emissions. Indeed, the 2013 Global Burden of Disease (GBD) found that ambient air pollution was associated with over 2.9 million premature deaths worldwide of which nearly two-thirds are in developing Asia.