Ambitious mitigation scenarios
Ambitious climate change mitigation scenarios present current Earth system models (ESMs) with new challenges. In such scenarios with reduced anthropogenic CO2 emissions, the relevance of smaller climate signals of previously secondary processes become more important, since every tenth of a degree of warming counts. This means accurate representation of the climate-carbon interactions and feedback uncertainties including explicit Carbon Dioxide Removal (CDR) measures is needed. ESMs in an emission-driven configuration must be able to reproduce anthropogenic carbon emissions from fossil fuels and land use change and management in the context of a closed and stable carbon cycle, with accurate representations of natural and anthropogenic carbon sinks. We evaluate uncertainties and process understanding of net-zero and overshoot scenarios.
Projects: FOOTPRINTS, RESCUE
Contributors: Estela Monteiro, Giang Tran, Sabine Bischof
