Business case problem with sample answer agency powers it will document rise in global temperatures has corn sided with a significant increase in the concentration of carbon dioxide in the atmosphere of many scientists believe that there were two trends or related because carbon dioxide is released into the atmosphere and produces a greenhouse effect trapped in the heat under the clean air act the environmental protection agency is authorized to regulate any air pollution emitted into the ambient air that it is judgment calls or contributed to air pollution a group of private organizations as the EPA to regulate carbon dioxide and other greenhouse gas emissions from new motor vehicles the EPA refused stated among other things that the most recent congressional amendments in CAA did not authorize any new binding auto emission limits $19$ states included Massachusetts estate District Court to review the EPA denial did the EPA have the authority to regulate greenhouse gas emissions from motor vehicles if so was it stated reason for refusing to do so consistent with that authority discuss