News - 15 October 2018
Public dataset is available at Scenario Explorer Website

IPCC SR1.5 Scenario Database


This scenario database collects results of emission scenarios relevant to the Intergovernmental Panel on Climate Change's (IPCC) 2018 "Special Report on Global Warming of 1.5°C" (SR1.5). The request is made by the Integrated Assessment Modeling Consortium (IAMC) and the International Institute for Applied Systems Analysis (IIASA) through a co-operation agreement with the Co-chairs of IPCC Working Group III (Mitigation). The resulting database will facilitate the assessment of 1.5°C mitigation pathways by the IPCC as requested by the parties to the UN Framework Convention on Climate Change (UNFCCC).

We are actively seeking emissions scenarios that:

  • aim at limiting warming to 1.5°C or well below 2°C, or
  • allow to contextualize 1.5°C or well below 2°C scenarios, for example, median 2°C, INDC, and baseline scenarios without climate policy. We are particularly encouraging submission of direct pairs of 1.5°C and well below 2°C or higher scenarios that are generated with the same model version and same set of input parameter assumptions.

For more information, please see the call for scenarios and the About page.


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Submission Deadlines and User access

24 April 2017: SR1.5 scenario database opens for submission of preliminary and published data

31 May 2017: Scenario data submitted by this date will be assessed by SR1.5 authors at their second lead author meeting.

30 June 2017: Scenario data submitted by this date can be considered for inclusion in the SR1.5 first order draft.

1 December 2017: The database closes for submission of new scenario data. Preliminary scenario data must have been updated based on a paper that was submitted to an academic journal by 1 November 2017 or a report that was published by 1 November 2017 and was determined to be eligible grey literature. Preliminary scenario data not fulfilling this requirement will not be included in the SR1.5 second order draft.

15 May 2018: Preliminary scenario data must have been finalized and updated based on an accepted paper or a published eligible report. Scenario data not fulfilling this requirement will be removed. The database closes. No further updates are possible, submitted scenario data can no longer be withdrawn.

30 September 2018: Database publication together with the publication of the SR1.5.

The data submitted to this database will be made available to the public after the approval of the Special Report. Modelling teams submitting scenario results to the database will only be able to access data uploaded by their own team, e.g., for checking that the data upload worked as intended.

For details on model registration and data upload see the About page.



With respect to information available from this webpage, neither IIASA nor any of its employees make any warranty, expressed or implied, including warranties of merchantability and fitness for a particular purpose, nor does IIASA assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, product, or process disclosed, nor does IIASA represent that its use would not infringe upon privately owned rights. The software is provided on an 'as is' basis and IIASA disclaims all liability of any kind whatsoever arising out of the use, or inability to use, the databases and all information and data contained within them. Parts of the pages or the complete model might be extended, changed or partly or completely deleted without separate announcement.

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Responsible for this page: IPCCSR15 Scenario Database Administrator