Supreme Court battle over global warming

In a landmark case before the Supreme Court, a coalition of US states, cities and environmental groups are attempting to force the Bush administration to regulate carbon dioxide emissions from cars and factories. In the widely reported case of Massachusetts vs Environmental Protection Agency (EPA) and others, the petitioners are arguing that the Clean Air Act mandates the EPA to regulate carbon dioxide as an air pollutant. The case, the first of its kind in the US, is being heard at a time when the Bush administration is coming under increasing pressure from within the country to tackle greenhouse gas emissions.

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