Welcome to the SSP Database (Shared Socioeconomic Pathways) - Version 2.0

Updating the SSPs

The community is currently developing an update of the SSPs, to be released in 2024. The preliminary data is publicly available as part of an ongoing peer review process at https://data.ece.iiasa.ac.at/ssp.

2018 Release, (Version 2.0, December 2018): The release includes four important updates and extensions of the SSP IAM scenarios:
  1. extended reporting of existing SSP scenarios, covering additional new variables,
  2. a set of new low SSP-based mitigation scenarios for a radiative forcing target of 1.9 W/m2 were added,
  3. some scenarios were updated in order to reflect recent near-term trends (eg for emissions), and
  4. the projections for greenhouse gas emissions and other radioactively active substances were harmonized for the base year to historical inventories. Nine of these harmonized SSP IAM emissions projections were provided to the ScenarioMIP of CMIP6 (the Climate Modelling Intercomparison Project 6) and will be part of the detailed assessment of possible future climate changes.
For a citation of the data please see here.

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