We make decisions on a daily basis that affect the quality of our own lives as well as the lives of future generations. These decisions determine how sustainable our future will be. To assist governments, businesses, communities, and individuals in making sustainable choices, our Sustainable Research Strategy aims to develop an understanding of the earth as a natural system and craft models and tools to support sustainable decision making. Our strategy incorporates both core research that advances fundamental understanding of key biological, chemical, and physical processes underlying environmental systems, and problem-driven research that targets specific environmental problems or customer needs. The research strategy draws on and integrates across the many research programs within the Office of Research and Development and focuses this research to support sustainable decision making.