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DO RECYCLING AND SOURCE REDUCTION SAVE ENERGY? One energy conservation success story that has gone largely unreported is recycling, but that's about to change. The U. S. Environmental Protection Agency has developed a way to quantify the energy benefits of improved materials management and found that recycling and source reduction conserve large amounts of energy. Since the energy of waste management practices for specific products accrue throughout the life-cycle, EPA undertook a study to calculate the energy benefits of improved material management using data from an existing greenhouse gas (GHG) life-cycle analysis. During the 1990s the EPA began an ongoing analysis of the life-cycle GHG impacts of waste management activities. Using life-cycle data from the GHG emissions research effort, the study developed net energy factors for a selection of commodities analyzed for four waste management options: source reduction, recycling combustion and landfilling. Energy impacts were calculated in million BTU per ton of material, with negative values indicating net energy savings. The study shows energy savings associated with recycling various materials are driven largely by the difference between manufacturing the material using virgin inputs and manufacturing the material using recycled inputs. But recycling results in some energy savings for all of the materials. The study demonstrates that recycling is not the only materials management practice that saves energy. In fact, waste reduction efforts such as source reduction can result in significant energy savings, in nearly every case exceeding the energy benefits of recycling. The study is summarized in the report, Solid Waste Management and Greenhouse Gases: A Life-Cycle Assessment of Emissions and Sinks. Resource Recycling, Jan 06, p 23, by Henry Ferland. David Wollner BRING Recycling Business Manager "Better to sink in boundless deeps, than float on vulgar shoals." Melville -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.1.371 / Virus Database: 267.14.16/225 - Release Date: 1/9/2006 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "GreenYes" group. To post to this group, send email to GreenYes@no.address To unsubscribe from this group, send email to GreenYes-unsubscribe@no.address For more options, visit this group at http://groups.google.com/group/GreenYes -~----------~----~----~----~------~----~------~--~--- |
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