From Earth Policy Institute

Lester R. Brown, World on the Edge: How to Prevent Environmental and Economic Collapse (New York: W.W. Norton & Company, 2011).

J. Matthew Roney, “Time to Rethink Japan's Energy Future,” Plan B Update, 7 April 2011.

From Other Sources

Galen Barbose, Naïm Darghouth, and Ryan Wiser, Tracking the Sun V: An Historical Summary of the Installed Price of Photovoltaics in the United States from 1998 to 2011 (Berkeley, CA: Lawrence Berkeley National Laboratory, November 2012).

Toby D. Couture et al., A Policymaker's Guide to Feed-in Tariff Policy Design (Golden, CO: U.S. Department of Energy, National Renewable Energy Laboratory, July 2010).

European Photovoltaic Industry Association (EPIA), Global Market Outlook for Photovoltaics 2013-2017 (Brussels: May 2013).

International Energy Agency (IEA), Medium-Term Renewable Energy Market Report 2013 (Paris: 2013).

Mark Z. Jacobson and Mark A. Delucchi, “Providing All Global Energy with Wind, Water, and Solar Power, Part I: Technologies, Energy Resources, Quantities and Areas of Infrastructure, and Materials,” Energy Policy, vol. 29 (2011), pp. 1,154–69.

Shyam Mehta, “GTM Research: Yingli Gains Crown as Top Producer in a 36 GW Global PV Market,” Greentech Media, 1 May 2013.

Renewable Energy Policy Network for the 21st Century (REN21), Renewables 2013 Global Status Report (Paris: 2013).