To characterize achieving a decarbonized global energy system as “challenging” is a heroic understatement. One key challenge is doing this globally, for countries with wildly diverse energy resource options and varying levels of existing infrastructure and societal readiness to support low-carbon energy systems. Another important challenge is decarbonizing all economic sectors, not just single sectors (e.g., transportation or electric power). In this issue of Joule, Jacobson et al.5 lay out 100% renewable energy roadmaps for 139 countries, providing an important expansion to previous analysis focused on the United States. This paper adds to a growing body of research that illustrates the critical importance of demand-side uncertainties in reaching global carbon targets.
Dyson, M. (2017, September 6). Sharpening Focus on a Global Low-Carbon Future. Joule. Cell Press. https://doi.org/10.1016/j.joule.2017.08.003