This book honours Partha Dasgupta, and the field he helped establish; environment and development economics. It concerns the relationship between social systems (to include families, local communities, national economies, and the world as a whole) and natural systems (critical ecosystems, forests, water resources, mineral deposits, pollution, fisheries, and the Earth's climate). Above all, it concerns the poverty-environment nexus: the complex pathways by which people become or remain poor, and resources become or remain overexploited. With contributions by some of the world's leading economists, including five recipients of the Nobel Prize in Economics, in addition to scholars based in developing countries, this volume offers a unique perspective on the environmental issues that matter most to developing countries.