The Climatic Impact-Driver Framework for Assessment of Risk-Relevant Climate Information

Alex C. Ruane*, Robert Vautard, Roshanka Ranasinghe, Jana Sillmann, Erika Coppola, Nigel Arnell, Faye Abigail Cruz, Suraje Dessai, Carley E. Iles, A. K.M.Saiful Islam, Richard G. Jones, Mohammad Rahimi, Daniel Ruiz Carrascal, Sonia I. Seneviratne, Jérôme Servonnat, Anna A. Sörensson, Mouhamadou Bamba Sylla, Claudia Tebaldi, Wen Wang, Rashyd Zaaboul

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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The climate science and applications communities need a broad and demand-driven concept to assess physical climate conditions that are relevant for impacts on human and natural systems. Here, we augment the description of the “climatic impact-driver” (CID) approach adopted in the Working Group I (WGI) contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report. CIDs are broadly defined as “physical climate system conditions (e.g., means, events, and extremes) that affect an element of society or ecosystems. Depending on system tolerance, CIDs and their changes can be detrimental, beneficial, neutral, or a mixture of each across interacting system elements and regions.” We give background information on the IPCC Report process that led to the development of the 7 CID types (heat and cold, wet and dry, wind, snow and ice, coastal, open ocean, and other) and 33 distinct CID categories, each of which may be evaluated using a variety of CID indices. This inventory of CIDs was co-developed with WGII to provide a useful collaboration point between physical climate scientists and impacts/risk experts to assess the specific climatic phenomena driving sectoral responses and identify relevant CID indices within each sector. The CID Framework ensures that a comprehensive set of climatic conditions informs adaptation planning and risk management and may also help prioritize improvements in modeling sectoral dynamics that depend on climatic conditions. CIDs contribute to climate services by increasing coherence and neutrality when identifying and communicating relevant findings from physical climate research to risk assessment and planning activities.

Original languageEnglish
Article numbere2022EF002803
JournalEarth's Future
Issue number11
Publication statusPublished - 4 Nov 2022
Externally publishedYes


  • climate hazards
  • climate information
  • climate projections
  • climate risk
  • climate services
  • Climatic Impact-Driver (CID)


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