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This report, prepared by the Stockholm Environment Institute and partners for the City of Seattle, develops a 'Carbon Neutral' scenario to demonstrate a pathway for the city to achieve net zero greenhouse gas (GHG) emissions by 2050. The analysis focuses on 'core' emissions—buildings, transportation, and waste—where the city has the most direct policy influence. The scenario suggests that aggressive implementation of efficiency and fuel-switching strategies could reduce per capita GHG emissions by 90% by 2050 relative to 2008 levels.

This research paper explores the application of global equity and "burden-sharing" principles to community-scale climate action planning. Using the City of Seattle as a case study, the authors apply the Greenhouse Development Rights (GDR) framework to demonstrate that an equitable global mitigation obligation for a wealthy city would require it to go carbon "negative" by 2020, meaning it must reduce its own emissions while financing low-carbon transitions in developing regions.