45. In its first case concerned with global warming,the US Supreme Court ruled in April that
greenhouse gases such as carbon dioxide are airpollutants which the Environmental ProtectionAgency (EPA) can regulate. As a consequence,experts agree that greenhouse emissions from automobiles and possibly power plants will face regulation. The debate will now focus on how strict or flexible those rules will be. ----. Moreover,the agency also stated that even if it did have the power to regulate these gases, it would not do so.
A) If the agency were to refuse, there would be alawsuit against it
B) However, the EPA had long claimed to have noauthority in regulating these gases
C) Siding with the EPA were several industrygroups and ten states, a number of which rely
heavily on coal, electricity or motor vehicleproduction
D) The Supreme Court ruling may represent amilestone in the legal battle over climate change
E) Notably, 12 states had been seeking waiversfrom the Agency permitting them to pass lawsrequiring reduced car emissions of greenhouse gases from the 2009 model year onward