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The unprecedented challenge of climate change has drawn massive increase of attention from people.The Hong Kong Government has set an aggressive target to reduce carbon intensity by 50-60% by 2020 from 2005 level.Besides, the relentless growth in the volume of municipal solid waste (MSW) has created a burgeoning challenge to the Hong Kong Government in tackling the MSW.This is expected that the current three strategic landfills in Hong Kong will be exhausted within the year 2014-2018.Due to this imminent issue, the Hong Kong Government has proposed to implement landfill extension (LFE) and advanced incineration facility (AIF) to curb this problem.However, the disputes of these proposals have triggered a strong sentiment among the Hong Kong public and green groups.Hence, a study to provide a comprehensive comparison of the GHG emissions from major processes of proposed LFE and AIF for Hong Kongs MSW within a defined system boundary was conducted.The results indicate that AIF is better for the climate compared to LFE.Sensitivity analysis on energy recovery systems shows that the utilization of MSW to generate electricity in AIF provides better GHG offsets compared to LFE.This study provides valuable insights to the policy makers into the potential of policy framework for MSW management practices in mitigating climate change.