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In the Collaboratorium, C-LEARN is the primary climate model. It takes greenhouse gas emission and land use deforestation/aforestation targets as inputs and provides outputs such as atmospheric concentrations of carbon dioxide (CO2) and increase in global mean temperature (GMT).
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Model attributes
Model type For example, General circulation model (GCM) or Integrated assessment model (IAM) or other (followed by acronym)
  Geographic scope  Extent of geographic coverage
  Geographic resolution  Level of geographic disaggregation
  Start date  Earliest date when model runs can begin
  End date  Latest date when model runs can end
  Time step  Number of years between discrete Quick running climate model (get exact text from scientific review)
  Geographic scope  Global
  Geographic resolution  3 regions or emission reduction targets, global for deforestation/aforestation targets
  Start date  2000
  End date  2100
  Time step  1 year
Approach for addressing risk/uncertainty Brief phrase describing how model deals with risk/uncertainty e.g. stochastic modeling approach, estimations of uncertainty based on variances in input values for discrete variables etc. Model outputs to not show level of uncertainty associated with simulation
  Key modules and linkages between them 
 C-LEARN/C-ROADS is comprised of six sub-models: 
- Regional CO2 emissions
- Other greenhouse gasses (CH4 and N2O)
- Land use
- Carbon cycle
- Global Average Surface Temperature
- Sea level rise
 Model diagram  
 ! Note: Include only if multiple modules, and if so, include next major header, “Variables and key assumptions,” for each 
  Model diagram  Insert model diagram if one is available
 Note: Format image file as: !imagefile.gif/jpg!
Variables and key assumptions
Module: Regional CO2 emissions
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables 
Module: Other greenhouse gasses (CH4 and N2O)
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables 
Module: Land use
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables 
Module: Carbon cycle
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables 
Module: Global Average Surface Temperature
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables 
Module: Sea level rise
 Description  
  Input variables  
  Key assumptions  Explain in words and include equations if available
  Output variables  Note: As noted above, if there are multiple modules, include section like this for each, with module name at start of header, followed by a colon. 
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