The U.S. House of Representatives passed a comprehensive climate and energy bill in June 2009, but by summer 2010, the Senate failed to produce a companion bill, putting into question Congress’ seriousness in addressing the climate change problem. While federal climate change legislation has stalled, federal agencies, states, and Congress made some progress on controlling greenhouse gas (GHG) emissions in the past two years. This fact sheet reviews notable steps taken by the Environmental Protection Agency (EPA), Department of Energy (DOE), and through stimulus funding, international finance commitments, regional cap-and-trade programs, and state energy policies. It also identifies political and economic developments that could impact federal climate legislation and additional regulatory action to reduce emissions by federal agencies. While these efforts are important, it is clear that much further action, including a binding cap on carbon, are necessary in the United States.