Obama administration authority to tighten pollution is limited . Obama earlier this year announced new rules to extend carbon emission standards to larger trucks and buses . EPA can not extend its complete ban on new or existing power plants . Industry had objected , saying new rules were a slippery slope . But industry does not see ruling as a negative , and it supports its policies mostly .
Obama administration authority to tighten pollution is limited . EPA can not extend its complete ban on new or existing power plants . Industry had objected , saying new rules were a slippery slope . But industry does not see ruling as a negative , and it supports its policies mostly .