Ulrike Lohmann, ETH Zürich, Switzerland


Should climate change be tackled with climate invention?


The Paris agreement concluded that global warming should be kept below 2ºC with respect to pre-industrial conditions, but that every effort is made to limit global warming below 1.5ºC. So far, greenhouse gas emissions are constantly rising and time to reverse this trend is running out. The IPCC 1.5 degree report assumes negative emissions in its scenarios, i.e. that more CO2 is removed from the atmosphere than emitted. In addition to these long-time measures, different short-term atmospheric climate intervention methods are discussed. These atmospheric climate intervention methods target the atmospheric radiation balance and are envisioned as temporary means to reduce the peak in global warming before temperature is decreasing again. These measures are called radiation management and are partly based on natural analogs, such as the global cooling that has been observed after major volcanic eruptions. In this talk, I will discuss the mechanisms, efficiencies, risks and side effects of different radiation management methods.


Thursday September 26, 14:15


Rossbysalen C609, Arrhenius laboratory, Svante Arrhenius väg 16C, 6th floor