Studies of climate-change mitigation pathways and strategies show that limiting global warming to 2° is much more ambitious and costly than a 3°. However, little is known of the quantitative differences between impacts of different levels of global warming, not to mention how impacts in different sectors may interact and potentially amplify one another.
ISIMIP is a community-driven climate-impacts modelling initiative aimed at contributing to a quantitative and cross-sectoral synthesis of the differential impacts of climate change, including the associated uncertainties. ISIMIP offers a consistent framework for cross-sectoral, cross-scale modelling of the impacts of climate change. The key goal of ISIMIP is to contribute to the comprehensive (cross-sectoral) understanding of the impacts of politically and scientifically-relevant climate-change scenarios.
ISIMIP is organised into simulation rounds, which are guided by a focus topic. For each round, a simulation protocol defines a set of common simulation scenarios based on the focus topic. Participating modelling groups are provided with a common set of climate input data, and other data (in some cases unique to one sector) necessary to ensure cross-sectorally consistent impacts simulations. Participation is open to all models capable of following the simulation protocol.
In the current simulation round, participating models cover impacts in the following sectors: