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Global warming

Carbon Footprint of Municipal Solid Waste Management in Major Economies

Strategic Insights

— 1 min read

Research conducted by Shanghai University of Engineering Science has shown that municipal solid waste (MSW) management plays a crucial role in reducing carbon emissions and advancing the circular economy. The study highlights the importance of evaluating the life-cycle carbon emissions and recycling benefits of complex waste treatment processes. The researchers developed an innovative carbon footprint analysis framework to evaluate treatment processes for various waste compositions, with case studies conducted in five major economies.

Key Takeaways:

  • The current carbon footprints of MSW treatment are quantified as 77.51 Mt CO2-eq (China), 89.47 Mt CO2-eq (the U.S.), 23.26 Mt CO2-eq (the EU), -5.57 Mt CO2-eq (Japan), and 34.84 Mt CO2-eq (India).
  • Landfill (LF) methane emissions from organic components, fossil CO2 emissions from incineration (INC), and offsets from generated electricity are the key contributors to the carbon footprint of MSW treatment.
  • Scenario analysis reveals that future waste growth driven by economic development would contribute nearly three times the emission increase, while grid decarbonization causes a 14.7% rebound effect due to diminished offset of energy recovery treatments.
  • Enhanced recycling reduces direct GHG emissions from incineration and increases the offsets, resulting in a 94% reduction in total carbon footprint of waste disposal.
  • This research provides a robust quantitative basis for policymakers to design carbon-neutral roadmaps, highlighting the transformative potential of sustainable waste management in the transition to a low-carbon, circular economy.

Statistics:

  • 77.51 Mt CO2-eq: current carbon footprint of MSW treatment in China
  • 89.47 Mt CO2-eq: current carbon footprint of MSW treatment in the U.S.
  • 23.26 Mt CO2-eq: current carbon footprint of MSW treatment in the EU
  • 34.84 Mt CO2-eq: current carbon footprint of MSW treatment in India
  • 14.7%: rebound effect due to diminished offset of energy recovery treatments caused by grid decarbonization
  • 94%: reduction in total carbon footprint of waste disposal through enhanced recycling

Sources:

  • Carbon Footprint Analysis of Msw Management In Major Economies and Future Mitigation Potential Via Enhanced Recycling. Journal of Material Cycles and Waste Management, 2025.
  • Shanghai University of Engineering Science.
  • National Natural Science Foundation of China (NSFC).
  • Key Research and Development Program of Zhejiang Province.

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