The DDPP issued a report on the first phase of its work, preliminary findings on tech nically feasible pathways, at the UN Climate Summit in September 2014, at the invitation of Secretary General Ban Ki-moon. This report summarized each country team’s initial research. In the fall of 2015, all 16 teams published stand-alone reports describing in greater detail their research into national DDPs. This 2015 Synthesis Report provides a cross-cutting analysis of the aggregate results, complementing the executive summary published in September 2015.

This supplementary material contains case studies presenting specific aspects of the DDPP country pathways. They illustrate and complement the cross-cutting analysis included in the 2015 DDPP synthesis report.

The Deep Decarbonization Pathways Project (DDPP) is a collaborative global research initiative to understand how individual countries can transition to a low-carbon economy consistent with the internationally agreed goal of limiting anthropogenic warming to less than 2 degrees Celsius (°C). Staying within this limit requires global net emissions of greenhouse gases (GHG) to approach zero in the second half of this century. This will entail, more than any other factor, a profound transformation of energy systems, through steep declines in carbon intensity across all sectors, a transition we call “deep decarbonization”.