Issue Area

Greenhouse Gas Mitigation

Overview

Reducing the output of greenhouse gas emissions remains the most critical strategy to mitigate climate change. Methane and hydrofluorocarbons (HFCs) contribute a significant amount of warming potential, though they are less well-known than carbon dioxide. While short-lived (lasting about 10 years in the atmosphere), methane is 35 times more damaging than CO2 over a century. States are looking at ways to limit the emission of methane and HFCs. 

NCEL Point of Contact
Clara Summers

Climate and Energy Manager

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Key Facts

HFCs are the world’s fastest-growing climate pollutants, increasing globally by more than 10% each year.

In 2019, methane (CH4) accounted for about 10% of all U.S. greenhouse gas emissions from human activities.

Tackling methane emissions creates high-quality jobs that cannot be taken offshore.

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Resources

NCEL Resources

Online Resources

Methane Detectors Challenge – Environmental Defense Fund

Initiative to test and validate nextgeneration methane monitoring devices that can be commercially deployed to help the oil and gas industry quickly find and fix methane leaks.

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U.S. States Take the Lead in HFC Phasedown

Fact sheet from NRDC outlining state efforts to reduce HFC.

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Overview of Greenhouse Gases

Backgrounder from EPA on greenhouse gases

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Reducing Methane Emissions from Natural Gas Development

Strategies for State-level Policymakers

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