To support the City of Boston’s greenhouse gas emission reduction goals, the Green Ribbon Commission is partnering with Boston University’s Institute for Sustainable Energy to develop 2030 and 2050 strategies for inclusion in the City’s 2018 Climate Action Plan Update. Boston is a leader in greenhouse gas mitigation and has set ambitious goals of cutting emissions by 25% by 2020 and achieving carbon neutrality by 2050. This document describes the key feature of the initiative design.