https://www.geosci-model-dev-discuss.net/gmd-2017-168/
The Carbon Dioxide Removal Model Intercomparison Project (CDR-MIP): Rationale and experimental design David P. Keller1, Andrew Lenton2,3, Vivian Scott4, Naomi E. Vaughan5, Nico Bauer6, Duoying Ji7, Chris D. Jones8, Ben Kravitz9, Helene Muri10, and Kirsten Zickfeld111GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany 2CSIRO Oceans and Atmospheres, Hobart, Australia 3Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Australia 4School of GeoSciences, University of Edinburgh 5Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich, UK 6Potsdam Institute for Climate Impact Research, Research Domain Sustainable Solutions, 14473 Potsdam, Germany 7College of Global Change and Earth System Science, Beijing Normal University, Beijing, China 8Met Office Hadley Centre, Exeter, UK 9Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, USA 10Department of Geosciences, University of Oslo, Oslo, Norway 11Department of Geography, Simon Fraser University , Burnaby, Canada Received: 11 Jul 2017 – Accepted for review: 16 Aug 2017 – Discussion started: 17 Aug 2017 Abstract. The recent IPCC reports state that continued anthropogenic greenhouse gas emissions are changing the climate threatening "severe, pervasive and irreversible" impacts. Slow progress in emissions reduction to mitigate climate change is resulting in increased attention on what is called *Geoengineering*, *Climate Engineering*, or *Climate Intervention* – deliberate interventions to counter climate change that seek to either modify the Earth's radiation budget or remove greenhouse gases such as CO2 from the atmosphere. When focused on CO2, the latter of these categories is called Carbon Dioxide Removal (CDR). The majority of future emission scenarios that stay well below 2 °C, and nearly all emission scenarios that do not exceed 1.5 °C warming by the year 2100, require some form of CDR. At present, there is little consensus on the impacts and efficacy of the different types of proposed CDR. To address this need the Carbon Dioxide Removal Model Intercomparison Project (or CDR-MIP) was initiated. This project brings together models of the Earth system in a common framework to explore the potential, impacts, and challenges of CDR. Here, we describe the first set of CDR-MIP experiments that are designed to address questions concerning CDR-induced climate "reversibility", the response of the Earth system to direct atmospheric CO2 removal (direct air capture and storage), and the CDR potential and impacts of afforestation/reforestation, as well as ocean alkalinization. *Citation:* Keller, D. P., Lenton, A., Scott, V., Vaughan, N. E., Bauer, N., Ji, D., Jones, C. D., Kravitz, B., Muri, H., and Zickfeld, K.: The Carbon Dioxide Removal Model Intercomparison Project (CDR-MIP): Rationale and experimental design, Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-168, in review, 2017 -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
