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Global warming is a reality. But whether it is a serious problem — and whether emis-sions of carbon dioxide (CO2) and other greenhouse gases from human fossil fuel useare the principal cause — are uncertain. The current debate over the U. S. responseto climate change centers on greenhouse gas emissions reduction policies, which arelikely to impose substantially higher costs to society than global warming might.
Source URL: http://cei.org/studies/10-cool-global-warming-policies