Barack Obama may be forced to order a two-year delay in Environmental Protection Agency (EPA) action on climate change to try to avoid a complete government shutdown, an environmental conference has been warned. President Obama faces the prospect of a government shutdown by 4 March, with a funding gap leading to federal employees being sent home and government services temporarily closing down, unless he can reach a deal with Congress Republicans who are demanding a crippling $61bn (£38bn) in budget cuts. The house will begin debate on the spending bill on Tuesday following efforts at the weekend to avoid a government shutdown, with news reports suggesting Republicans might compromise on some of the cuts. ... The Obama administration committed to cut emissions by 17% from 2005 levels at the UN climate change conference in Copenhagen in 2009. The EPA took the first steps to monitoring greenhouse gas emissions on 1 January 2011. The White House has said repeatedly that it would veto isolated measures to strip the EPA of its legal authority and funds to act on climate change. But officials have pointedly not offered the same assurances on whether the White House would be willing to risk a shutdown of the entire federal government to protect the agency and its green agenda. ... Buried among the $61bn in Republican budget cuts are a series of measures that would strip the overall budget of the EPA by 30%. The Republican bill would specifically bar the Obama administration from funding programmes regulating greenhouse gas emissions, or connected to climate science and international negotiations for a deal to end global warming. It cuts funds for the post of White House climate adviser, Carol Browner, who has announced her resignation, and the State Department climate envoy, Todd Stern. It de-funds the UN climate science body, the Intergovernmental Panel on Climate Change, and the UN body for climate talks, the UNFCCC. The White House and Democrats in Congress have called the proposals extreme.