Methane is the second most prevalent anthropogenic greenhouse gas emitted in the United States and has a global warming potential 28–34 times higher than carbon dioxide over a

Two US senators went public with this proposal to cut short-lived climate pollutants (SLCPs) which are currently responsible for 40 per cent or more of global warming. Introducing the Super Pollutants Act of 2014, senators Chris Murphy (Democrat, Connecticut) and Susan Collins (Republican, Maine) have called for establishing a task force to review specific policies and laws to reduce black carbon, methane, and high-global warming potential (GWP) hydrofluorocarbons (HFCs).

A Bill to establish a task force to review policies and measures to promote, and to develop best practices for, reduction of short-lived climate pollutants, and for other purposes.

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The U.S. Biennial Report, as part of the 2014 U.S. Climate Action Report, outlines how U.S. action on climate change puts the United States on a path to reach the ambitious but achievable goal of reducing U.S. greenhouse gas (GHG) emissions in the range of 17 percent below 2005 levels by 2020. During 2009-2011, average U.S.