Credibility gap in net-zero climate targets leaves world at high risk

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/101853 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/101853 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/101853 archive 2 disk0/00/01/88/48 2023-06-09 09:27:45 2023-06-13 16:42:32 2023-06-09 09:27:45 article show Rogelj J. 8630 0000-0003-2056-9061 Fransen T. den Elzen M.G.J. Lamboll R.D. Schumer C. Kuramochi T. Hans F. Moldijk S. Portugal-Pereira J. Credibility gap in net-zero climate targets leaves world at high risk pub ECE IACC TISS Global climate policy is undergoing a rite of passage. What used to be a conversation about ambitious target setting now focuses increasingly on implementation and interventions to achieve these targets. This liminal transition from ambition to implementation is complex and presents deep ambiguities that are challenging for scientists to communicate and decision-makers to fathom. A critical question is whether we can believe that countries will deliver on the commitments they have made. By evaluating policy characteristics of countries’ net-zero targets, we can assign the targets credibility ratings, then estimate how greenhouse gas (GHG) emissions and temperature are differentiated by our confidence in the targets. When we consider the credibility of current climate pledges, our assessment shows that the world remains far from delivering a safe climate future. 2023-06-08 American Association for the Advancement of Science (AAAS) 10.1126/science.adg6428 254 public Science 380 6649 1014-1016 TRUE 1095-9203 info:eu-repo/semantics/article