This article discusses research into policies to manage greenhouse gases in the U.S. Debates in the U.S. Congress regarding the distribution of economic impacts associated with different mechanisms designed to encourage the reduction of greenhouse gas emissions are considered. Changes in government mandates on fuel efficiency developed by the administration of U.S. President Barack Obama are described. The development of tax proposals that would discourage the use of carbon dioxide is compared with the use of cap-and-trade systems to limit the proliferation of greenhouse gas generating technology.
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