WITCH is a global dynamic model integrating the interactions between the economy, the technological options, and the climate change

The economy is modeled through an inter-temporal optimal growth model which captures the long-term economic growth dynamics. A compact representation of the energy sector is fully integrated with the rest of the economy so that energy investments and resources are chosen optimally. Land use mitigation options are available through a soft link with the land use and forestry model. The future climate is computed by a climate model. Climate change impacts the economic output through a damage function, depending also on the rate of investments in adaptation.

The WITCH model allows accounting for the complete dynamic of climate change mitigation and adaptation for dozens of macro-regions for the next 100 years … For a complete description of the model check out our Documentation, or if you want to see some applications of our model, browse through our our blog here below or play with our web app the Policy Simulator …

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