Formed in October 2013, the DDPP issued a report on the first phase of its work at the United Nations Climate Summit in September 2014, at the invitation of Secretary General Ban Ki-moon. This report summarized the initial research of each country team. In the fall of 2015, all 16 teams are publishing stand-alone reports describing in greater detail their research into national DDPs. In addition, a new synthesis report and an executive summary provide a cross-cutting analysis of the aggregate results.
"Deep decarbonization of today’s highest emitting economies is technically achievable and can accomodate expected economic and population growth. Each country team produced multiple technically feasible pathways that resulted in deep decarbonization of their economies. Across all scenarios, by the year 2050 energy- related CO2 emissions for the 16 DDPP countries were reduced to 9.8-11.9 Gt CO2, or 48-57% below 2010 levels. These scenarios take into account expected population growth of 17% on average across the DDPP countries during the 2010-2050 period, and also accommodate aggregate GDP growth of 250%—an average rate of 3.1% per year—during the period."
Deep Decarbonization Pathways Project (2015). Pathways to deep decarbonization 2015 report - executive summary, SDSN-IDDRI.