Published October 20, 2026
| Version v1
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High Emissions Amid Policy Rollback: The GCAM Marker & Scenario Suite for CMIP7
Authors/Creators
- 1. Center for Global Sustainability, University of Maryland
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2.
Basque Centre for Climate Change
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3.
Korea Advanced Institute of Science and Technology
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4.
Peking University
Description
Preprint of High Emissions Amid Policy Rollback: The GCAM Marker & Scenario Suite for CMIP7, submitted to Environmental Research Letters
This paper documents the Global Change Analysis Model (GCAM) contribution to ScenarioMIP for CMIP7, focusing on the SSP3-based High emission scenario selected as the CMIP7 high-emissions marker, while also presenting the full eight-scenario GCAM suite from High to Very Low emissions.
We map distinct socioeconomic routes to the contemporary high end of the emissions range and assesses the High emissions scenario against the multi-model ensemble, contemporary scenario literature and probabilistic emissions projections, and compare it with CMIP6-era SSP3 and SSP5-8.5 pathways.
Files
High_Emissions_Main_Text_SI_v14.pdf
Additional details
Related works
- Has version
- Software: https://zenodo.org/uploads/22201843 (Other)
- Is referenced by
- Software: https://zenodo.org/records/23223475 (Other)