Annual Decarbonization Perspective (ADP) 2022
This report, published by SDSN partner Evolved Energy and DDPP Director Jim Williams, inaugurates a series of annual updates that aim to move pathways analysis in the U.S. beyond isolated proofs-of-concept towards becoming a practical implementation tool for addressing next-stage challenges in energy and climate change mitigation. These are detailed technical blueprints for the transition to a net-zero economy, including the production and use of energy, the land carbon sink, and non-energy greenhouse gas emissions. We used sophisticated, fine-scaled software modeling to map the infrastructure changes, technologies, and costs required to reach carbon neutrality by mid-century along various alternative pathways, while maintaining U.S. economic productivity and a reliable energy system. A growing list of long-term pathways studies in the last few years indicates increasing interest in this type of work. However, a lack of transparency and standardization across these studies renders comparison of results, methods, data sources, and input assumptions difficult. Pathways studies to date are largely a set of one-off snapshots of possible futures, with relatively little coordination between research efforts or continuity over time.
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