Phase-in and Phase-out Criteria for Radiation Management Implementation

The aim of this project idea is to analyze phase-in and phase-out criteria for radiation management (RM) implementation from an economic point of view. Together with carbon dioxide removal technological, RM technologies are summarized under the blanket te rm climate engineering which means the intentional large-scale manipulation of the Earth?s radiation balance for the purpose of mitigating anthropogenic climate change. In particular the RM technologies provide a distinct new option for the climate change mitigation portfolio, involving many trade-offs and aspects which have so far not been analyzed. Currently, the most urgent questions address the issue of researching RM-technologies. Should we research those technologies at all and if yes, how should we research those technologies in particular when it comes to field experiments? It is still an open question, if meaningful field test are possible and if at all already field experiments might be too chancy. Previous analysis indicated that problems might be associated with interrupting RM implementation, once you have started using it. That means previous analysis has not yet investigated how RM implementation can be tested taking explicitly into account the issue of termination. Therefore this project a ims to address these questions by analyzing scenarios related to phasing-in (in particular for experimental testing of RM technologies) and phasing-out RM implementation (in particular for the case of unforeseen side-effects). Even though the field of cli mate engineering economics just starts developing, the project partners have experience in this field and are among the first authors which have analyzed certain economic aspects of climate engineering. Therefore, the project partners would like to meet i n Bergen to further discuss this project idea and to define the relevant scenarios.