The Environmental Protection Agency is delaying plans to force power plants, oil refineries and other industrial polluters to reduce their greenhouse gas emissions until at least 2011. The EPA also said it won’t target small emitters of greenhouse gas emissions until 2016. In December, the EPA announced it will draft regulations to curb greenhouse gas emissions under the Clean Air Act. Since then, the agency has faced harsh criticism from lawmakers from states that rely on coal mining and electricity generated from fossil fuels. On Monday, Democratic Senator John Rockefeller of West Virginia pressed for legislation to strip the EPA of its authority to regulate greenhouse gas emissions. Democratic Senators Max Baucus of Montana and Carl Levin of Michigan have also opposed the EPA’s plan to regulate emissions. EPA administrator Lisa Jackson will be testifying before the Senate Committee on Environment and Public Works today.