GHG-Air pollution INteractions and Synergies (GAINS)

Assesses the effects and costs of greenhouse gas emissions and air pollution

The GAINS Model addresses health and ecosystem impacts of particulate pollution, acidification, eutrophication and tropospheric ozone. Simultaneously, the GAINS Model considers greenhouse gas emission rates and the associated value per ton of CO2 equivalence. Historic emissions of air pollutants and GHGs are estimated for each country based on information collected by available international emission inventories and on national information supplied by individual countries. The GAINS Model assesses emissions on a medium-term time horizon, emission projections are specified in five year intervals through the year 2030. Options and costs for controlling emissions are represented by several emission reduction technologies.

The model can be operated in the 'scenario analysis' mode, i.e., following the pathways of the emissions from their sources to their impacts. In this case the model provides estimates of regional costs and environmental benefits of alternative emission control strategies. The Model can also operate in the 'optimisation mode' which identifies cost-optimal allocations of emission reductions in order to achieve specified deposition levels, concentration targets, or GHG emissions ceilings. The current version of the model can be used for viewing activity levels and emission control strategies, as well as calculating emissions and control costs for those strategies.



No training needed
No cost
Using the tool: No cost
Time needed:
0-2 weeks

Accessing the tool

Online: Online, but registration is needed
Markus Amann
+43 2236 807-0
GHG emissions and energy models

Computer-based models which calculate greenhouse gas emissions and energy supply and demand.

Area of focus
GAINS: Mitigation 0, Adaptation 3, Development 0

Published by:

The International Institute for Applied Systems Analysis (IIASA)


For global use