PROGRAM TITLE: Human Dimensions of Global Change (HDGC) ACTIVITY STREAM: Assess, Process, Observe, Data, Model SCIENCE ELEMENT:Human Interactions NATIONAL SCIENCE FOUNDATION SCIENTIFIC MERIT: The HDGC program supports research on human interactions in global change, including both direct human activity and indirect social, structural, and institutional issues affecting global change. Special emphasis is given to research that draws on and show promise of contributing to general understandings of the ways that human activities impact on natural systems; of the ways that humans (both individually and collectively) respond to changing environmental conditions; and of the complex ways that human systems interact with natural systems in a dynamic framework. Special attention is given to the economics of global change, including research on economic forces affecting and affected by global change; resource impacts and adaptation; the value of information and decision making under uncertainty; economic forces shaping technology and practice linked to global change; and economic evaluation of different types of policies and policy instruments. Other types of projects supported include inquiries into risk assessment by individuals and groups; the impact of social and cultural forces on human activities and the perception of and response to global change; geographic variations in the form and character of human- environmental interaction; and mathematical approaches to data collection and management, analyses, and modeling. A special new emphasis of the program in FY 1995 will be advancement of research on policy science, especially research focusing on the data, analytical methods, and models needed to address develop, implement, manage, and evaluate environmental policies. This program directly addresses the US/GCRP's scientific and policy goals by contributing toward improved knowledge of the involvement of human systems in integrated Earth system analyses. Operation of the program consists of peer-based merit review of proposals submitted by investigators in response to solicitations. Outcomes of research funded through this program are disseminated through scientific publications and presentations. Knowledge advanced through research funded by this program helps the US/GCRP meet many of the milestones identified in April 1992, especially those dealing with the human dimensions and economics of global change under the process and modeling themes. Oversight and evaluation of the program is provided through the NSF Social, Behavioral, and Economic Sciences Advisory Committee and committees of visitors charged by the Division of Social, Behavioral, and Economic Research. STAKEHOLDERS: HDGC is attempting to cultivate research by social, behavioral, and economic scientists that bridges topics of interest to communities ranging the natural sciences to the policy-making communities. Primary beneficiaries of the program therefore scientists and engineers in the U.S. and in other countries examining the dynamics through which human systems interact with natural systems in the context of global change. The results of research are of special value to those interested in better understanding human responses to changing environmental conditions, including those evaluating the potential efficacy and impact of different types of policy responses. Through an enhanced policy science emphasis, the program will directly benefit policymakers at other federal agencies and in other governmental settings, including international agreements. The program complements and partially supports the work of the international Human Dimensions of Global Change Programme (HDP). It also provides support for activities undertaken by the Social Science Research Council and the National Academy of Sciences to integrate social and economic scientists into global change research. POLICY RELEVANCE: Policy payoffs include expanded knowledge of the dynamics of human impacts on natural systems and the form, character, and magnitude of human responses to environmental change. As a result, understandings of processes, predictive models, and capabilities for evaluating policy and response alternatives will be improved. Policy science investigations will contribute over both short and longer terms to advancing understanding of the processes through which policies are developed, implemented, managed, and evaluated effectively. Benefits will accrue to policymakers at all levels with respect to increasing understandings of the ways that humans respond through individual and collective action to changing environmental conditions and to possible changes in human activity as would occur through various mitigation and adaptation strategies. Such an improved knowledge base provides sounder scientific bases for understanding fundamental social and behavioral processes, for modeling and predicting future activities, and for assessing the likely impact and efficacy of various types of policies and response strategies. PROGRAM CONTACTS:Thomas Baerwald, Geography and Regional Science Program Director Robin Cantor, Decision, Risk and Management Program Director