Integrated Assesment Models

Integrated Assesment Models are multi-disciplinary economic models which often integrate climate change with changes in non-renewable resources, demography, etc.

Model Description Source code How-to
Dynamic Integrated Climate Economy model Prize-winning economic model used to estimate the costs of human-indunced climate change on the global economy. Learn more… GAMS Guide
Global Change Analysis Model Open-source integrated assessment model used to generate scenarios for IPCC assessments. C++ (ECL-2.0) Not yet
World3 Legacy model model of non-renewable resource use and population growth, developed in the 70s until 2004, and still often cited in research today. Stella Not yet

Reduced Complexity Climate Models

Reduced Complexity Climate Models (RCCMs) are simplified models that simulate key climate system components, focusing on greenhouse gases, radiative forcing, and temperature changes. They offer faster simulations for large-scale analyses.

Model Description Source code How-to
OSCAR Hemispherically resolved model with parameterizations for carbon cycling, atmospheric chemistry, and radiative forcing. Python (CeCILL-2.1) Guide
Finite Amplitude Impulse-Response simple climate-carbon-cycle model Regionally differentiated model with detailed process-based representation of carbon cycles and greenhouse gas interactions. Python (Apache-2.0) Guide
The Hector Simple Climate Model Model with a simplified box structure for atmosphere, ocean, and land components. C++ (GPLv3) Guide
Model for the Assessment of Greenhouse Gas Induced Climate Change Emissions-based model using impulse response functions to directly connect greenhouse gas emissions to temperature outcomes Closed-source Guide