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Two prominent - and iconoclastic - environmentalists argue that current efforts to tax or cap carbon emissions are doomed to failure and that the answer lies not in making dirty energy expensive but in making clean energy cheap.

Potenco has developed a portable power generator (patent-pending) to help keep electronic devices charged - no wall sockets required. One minute of your own muscle power will provide enough energy to keep your devices running for up to several hours

Article investigating the current state of LED lighting solutions. Studies suggest that a complete conversion to the lights could decrease carbon dioxide emissions from electric power use for lighting by up to 50 percent in just over 20 years; in the United States, lighting accounts for about 6 percent of all energy use. A recent report by McKinsey & Company cited conversion to LED lighting as potentially the most cost effective of a number of simple approaches to tackling global warming using existing technology.

by Daniel J. Weiss, Daniel Wagener, Center for American Progress Action Fund