Federal mandate to reduce greenhouse gas emissions 28 percent . Government has responsibility ` ` to reduce our energy use , '' Obama said . White House energy reductions will amount to $ 8 billion to $ 10 billion in avoided energy costs .
Federal government to reduce greenhouse gas emissions 28 percent . Government has responsibility `` to reduce our energy use , '' Obama says . White House says reductions will amount to $ 8 billion to $ 11 billion in avoided energy costs .