Lawrence Livermore National Lab, Princeton University, and the IPCC have all published proposed climate mitigation pathways: strategies for economically reaching net-zero emissions by mid-century for California, the U.S., and the world, respectively. And they are not alone. Any given pathway to net-zero emissions offers some combination of efficiency improvements, expansion of renewable energy sources, and some amount of so-called "negative emissions," using technologies and natural processes that capture and store carbon. But what determines the ratio of these three decarbonization methods? What determines which particular ratio will produce the lowest-cost and most feasible pathway for society?
Climate Now sat down with Dr. EJ Baik, to discuss her research on the least-cost pathway for decarbonizing California’s electrical grid by 2045. EJ explains how major decarbonization pathways are modeled, the assumptions behind those models, and why sometimes the most economical way to reach net-zero is not what you’d expect.
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