The National Capital Commission (NCC) and the City of Ottawa (referred to herein as the Project Partners) commissioned CBCL Limited to undertake a comprehensive climate change projection study for the National Capital Region (NCR). The project used a collaborative and impacts-driven approach that involved iterative feedback from the Project Partners and stakeholders such as the Ville de Gatineau and Conservation Authorities. It relied on data and advice from Environment and Climate Change Canada’s (ECCC) Canadian Centre for Climate Services (CCCS). This study complements work being done by the Ville de Gatineau in partnership with Ouranos.