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AddArizona's new governor may abandon California greenhouse gas rules

There may soon be one less state that uses California's carbon dioxide emissions standards for motor vehicles: Arizona. Before leaving office, former governor Janet Napolitano (D) issued an executive order requiring the state's Department of Environmental Quality to adopt the rules that would effectively push fuel economy standards to 44 mpg by 2016. Napolitano has since moved on to become Secretary of Homeland Security in the Obama administration and Republican Jan Brewer is now occupying the g

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