This special issue focuses on environmental problems related to poverty and economic growth in South Asia and seeks to illustrate the types of economic analyses that can be undertaken to address these problems. The idea for this issue emerged at the inauguration of the South Asian Network of Development and Environmental Economics (SANDEE). The papers presented at SANDEE's inaugural conference demonstrated the need for a tighter connection between environmental and development economics. The study of environmental change in poor countries benefits a great deal from well-established theoretical and empirical investigations of externalities and valuation of non-market goods, the staple of environmental economics as taught in the West. However, it is also closely tied to questions about institutions and why they succeed or fail. The spatial nature of dependence of the poor on local resources also matters. Further, the study of environmental change and of institutions cannot be divorced from policies and economic reforms in poor countries. These are some of the topics discussed in this collection.