Hans Opschoor is Professor of Sustainable Development Economics at the Institute of Social Studies and Professor in Environmental Economics at the Free University of Amsterdam. Hans Opschoor has worked in the field of environmental and ecological economics since 1971. From 1978 onward he has specialised in international aspects of these fields, especially North-South ones. He has worked and lived in Southern Africa (Botswana) and been involved in projects in India and China. Recently, Hans Opschoor has focused on the economics of climate change, and environment and poverty. In addition to that, he has a strong interest in scientific/academic co-operation in research and capacity development in a North-South-South. Hans Opschoor has  published 13 edited volumes and monographs and over 170 articles, mostly on environment and development, environmental economics, environmental policy, environmental policy instruments.