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Emissions of Substitutes for Ozone Depleting Substances

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The emissions of hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) used as substitutes for ozone depleting substances (ODS) are rising worldwide. The U.S. EPA and various industries are working together to measure, manage and reduce these emissions. Several analyses are provided and many voluntary EPA/industry partnerships have been started.

Emission Estimates

The emissions of hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) used as substitutes for ozone depleting substances are rising worldwide. Under the United Nations Framework Convention on Climate Change, many nations including the U.S. annually submit greenhouse gas emission inventories that estimate emissions of these and other greenhouse gases. The U.S. EPA has also made estimates of HFC and PFC emissions globally, and has analyzed opportunities and costs to reduce those emissions. The original study has been revised and incorporated into reports analyzing global emissions and mitigation potentials of all non-CO2 greenhouse gases.

Others have performed similar analyses, and a partial list of these studies is provided below. Researchers will see that different analyses can lead to vastly different estimates of current and future emissions, depending upon the data used and methodologies employed.

U.S. EPA Reports

Additional Reports


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