Following along on the open science theme. Late last year, the IPCC introduced a backdrop policy on open data licensing (essentially CC‑BY‑4.0 for data, permissive licensing for related code):
- Huard, David, Anna Pirani, Robert Chen, José Manuel Gutiérrez, Martin Juckes, Volker Krey, Alessandro Spinuso, and Martina Stockhause (14 October 2022). IPCC data and code licensing guidelines — v1.1. Geneva, Switzerland: Intergovernmental Panel on Climate Change. doi:10.5281/zenodo.7431834.
These principles are (listed on the final page):
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Input data, [that is] data curated by the DDC [IPCC Data Distribution Center] as originally published by the data providers, shall be licensed under the same license terms and conditions imposed by the data providers.
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Data produced as part of the IPCC assessment, be it intermediate or final assessment data, shall be published, wherever possible, under the CC BY 4.0 license. If exemptions cannot be obtained from the copyright owners, the applicable licenses of input data will apply.
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Source code that underlies IPCC data products is encouraged to be published using permissive (non‑copyleft) open source licenses.
Worth noting that very little of the work that currently feeds into the IPCC workflows would comply with these sentiments. Some senior IPCC folk have started describing processed outputs published by the IPCC as FAIR, but I have yet to establish that the “R” extends to legal reusability and specifically CC‑BY‑4.0 licenses. That said, I fully agree with these new recommendations.
Note also: some open‑source integrated assessment models (IAM): https://forum.openmod.org/t/3778/2