While Republican foes and many in the business community accuse President Obama of pushing aggressive environmental agenda, the Obama EPA has actually been holding back on many of its key initiatives.

Critics say the go-slow approach at the Environmental Protection Agency is part of a 2012 re-election strategy for the president.

In July, the EPA announced that it would postpone, for the fourth time, new ozone standards, with a promise to reconsider them at a later date. Then in August, EPA regulators chose to ignore a promised toughening of carbon monoxide standards, angering many environmentalists. That followed a decision to postpone indefinitely rules that would have punished companies for emissions the agency says are linked to global warming.