气候变化：国家和地方努力减少汽车温室气体排放
Climate Change: State and Local Efforts to Reduce Greenhouse Gas Emissions from Vehicles
【关键词】 Carbon ; Carbon dioxide ; Climate ; Climate change ; Emissions ; Environmental protection ; Federal-aid highway program ; Greenhouse gas emissions ; Greenhouse gases ; National highway system ; Public roads or highways ; Transportation ; Transportation planning ;
运输业是美国最大的温室气体排放源
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