While extreme poverty rates around the world have decreased by more than half since 1990, one in five people in developing regions still lives below the international poverty line. In addition, the gap between rich and poor is widening. Brazil, for example, has the eighth-largest economy in the world but one of the widest income inequality gaps. Even in the United States, more than 40 million people live in poverty. The Green School is producing leading research on income disparities, racial and gender inequality, gentrification, minorities and marginalized communities, and the complex role of globalization in both ameliorating poverty and concentrating wealth.