The aim of the project was to examine the impact of the El Nino/La Nina phenomenon on Southeast Asia from an interdisciplinary perspective, taking particular account of social and economic consequences (the human dimension), lessons for policy (in particular, the mitigation of natural hazards impacts and global change) and implications regarding the longer-term impact of global environmental change. This problem was addressed by assembling information regarding current understanding of the issue through a) an international workshop and b) by promoting further scientific work and policy development.