This report seeks to present microevidence on how environmental changes affect poorhouseholds. It focuses primarily on environmental resourcesthat are outside the private sphere, particularly commonlyheld and managed resources such as forests, fisheries, andwildlife. The objectives for this volume are three-fold. Itis first interested in using an empirical data-drivenapproach to examine the dependence of the poor on naturalresources. The second objective is to examine the role ofthe environment in determining health outcomes. A third areaof interest concerns the role of policy instruments andreforms. This report uses general economics literature aswell as data collected by the World Bank and its partners toanalyze poverty-environment linkages at the household level.Poverty-environment linkages are inherently dynamic andinvolve behavioral responses that make the identification ofcause and effect difficult. Thus, questions related to theselinkages are ideally answered with the use of panel datasetsor with data from randomized experiments.