2013 study from Ohio State University published in the American Journal of Agricultural Economics on the effects of coal mining and poverty in the Appalachia region.
2011 study in Environmental Health Perspectives on responses in rodent brains to particulate matter from highway traffic.
Electricity-related data from the 2012 Congressional Research Service report, "U.S. Energy: Overview and Key Statistics."
2012 report from the Congressional Research Service on U.S. energy production and consumption, with breakdowns of production and consumption by sector.
Report by the U.N. Environment Program and World Meteorological Organization on the impact of black carbon and other substances on the climate and health.
2011 study by Cornell University on uncounted greenhouse gas impacts of unconventional extraction and hydraulic fracturing.
Compendium of websites with more information on environment, energy, climate and sustainability issues
2010 study by the Council on Foreign Relations on issues of technology research and development among major countries.
2009 study published in Environmental Science and Technology on the costs and potential benefits of substituting biomass for coal to generate energy.
2010 study by the University of Maryland and other institutions on the long-term environmental impacts of mountaintop coal mining.