Environment for Development is the GEO-4 underlying theme and the report pays special attention to the role and impact of the environment on human well-being as well as to the use of environmental valuation as a tool for decision-making. GEO-4's specialized report, the Summary for Decision Makers is an essential guide for policy-makers. Both publications are excellent tools for teaching and research and relevant in the field of international environmental governance as they highlight policy opportunities for a more sustainable approach to economic growth and development.