Institutskolloquium PG: Climatic Geoengineering: a silver bullet? A view from the Andes. – Mi. 26.04.2023

Physisch-geographisches Kolloquium (PG):
Climatic Geoengineering: a silver bullet? A view from the Andes.

Prof. Dr. Alfonso Fernándes (Univ. de Concepción, Chile)

Moderation: Prof. Dr. Matthias Braun

Among the myriad of mitigation strategies for anthropogenic climate warming, Climatic Geoengineering is one of the most controversial proposals to limit projected trajectories of temperature increase for the rest of the 21st century. Numerical models that evaluate the sensitivity of the climate system to different types of climate engineering include those that simulate the effect of solar radiation management (SRM) in order to attenuate warming by decreasing the incoming shortwave radiation flux, the engine of the global energy balance. While many numerical models indicate that Climatic Geoengineering can limit warming to levels below 1.5 ºC to 2 ºC relative to pre-industrial conditions, little is known on the regional effects associated to these mitigation approaches. Here I present analysis of the G6Solar experiment over the Andes, including impacts on temperature, precipitation, and glacier mass balance. After an overview of the principal concepts associated with SRM, I show how the G6Solar experiment, that simulates a climate derived from decadal decreases of the solar radiation influx to the surface, compares with the CMIP6 SSP245 and SSP585 scenarios. In this work, we put forward some dynamical arguments to explain the trends detected in the G6Solar experiments and discuss techno-ethical implications for policy-making.

Wann: Mittwoch, 26.04.2023 von 12:30 bis 14:00 Uhr
Wo: Präsenz, Seminarraum Tennenlohe, Wetterkreuz 15, 91058 Erlangen.


Vortragsübersicht für das Institutskolloquium im Sommersemester 2023.

Fragen zum Kolloquium?
Organisation: Dr. Jan Winkler (KG) ( & Dr. Sebastian Feick (PG) (