2010 study by Harvard, Princeton, the University of Adelaide, and the National University of Singapore on the environmental impact of a large set of countries.
2010 study by Nature Conservancy Center for Science and Public Policy on depletion across 18 Arizona watersheds and possible mitigation strategies.
2008 UC Santa Barbara and the University of Hawaii study on the effects of catch-share systems and their potential to reduce overfishing.
2010 study published in Nature magazine on the change in the level of oceanic phytoplankton activity over the last 100 years.
2010 paper on the increased investment of key developing nations in the global production of clean-energy technology.
2010 study examining the challenges of coordinating small-scale and large-scale endangered-species lists.
2010 study by researchers from the University of Delaware and Stony Brook University on the potential of large-scale wind-farm networks.
2008 paper by the Widener University School of Law on approaches for realizing the potential benefits of energy efficiency in the United States.
2009 report by the Union of Concerned Scientists analyzing more than a decade of peer-reviewed research on genetically modified crops
In response to concerns about climate change, fossil fuels, and nuclear power, a 2009 McKinsey & Company study looks at the potential benefits of conservation.