This paper presents a recent version of the advanced multi-region World MARKAL model used to explore CO2 abatement options.

The report describes the structure and the properties of the World MARKAL model (dynamic optimization, technology explicit model, multi-regional, partial equilibrium framework with price-elastic demands) as well as the base case (input data, calibration assumptions, energy/emissions properties), so that any user who would build another base scenario could reproduce this approach.

The World MARKAL can be considered as one of the first world bottom-up optimization model with so high a level of detail in end-use and supply sectors.