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Climate Change

T 5.07 Recap and Glossary


  • Global circulation models (GCMs), developed in the 1990s, are used to make predictions and projections about the future viability of coffee farming.
  • GCMs divide the world into a three-dimensional grid that extends from the bottom of the oceans up to the outer atmosphere.
  • Computer processing power since the 1990s has allowed the cell sizes to become smaller, which allows for more localised predictions. 
  • Where GCMs lack regional accuracy, advances in this type of technology have introduced Representative Concentration Pathways (RCPs).
  • Using this technology C Bunn et al., (2014) project a 49% loss of climate-compatible land by 2050 for growing the arabica species.