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SUMMARY:Dynamical systems approaches to climate response and climate tippi
 ng - Anna von der Heydt\, Utrecht University
DTSTART:20251114T160000Z
DTEND:20251114T170000Z
UID:TALK237973@talks.cam.ac.uk
CONTACT:Duncan Hewitt
DESCRIPTION:The currently ongoing climate change and the debate about poss
 ible measures to be taken to limit the consequences of climate change\, re
 quires to know and understand the future response of the climate system to
  greenhouse gas emissions. Classical measures of climate change such as th
 e Equilibrium Climate Sensitivity are inherently linear and unable to acco
 unt for abrupt transitions due to (interacting) tipping elements. \n\nIn t
 his presentation I will discuss more general notions of climate sensitivit
 y defined on a climate attractor that can be useful in understanding the r
 esponse of a climate state to changes in radiative forcing. For example\, 
 a climate state close to a tipping point will have a degenerate linear res
 ponse to perturbations\, which can be associated with extreme values of th
 e climate sensitivity. While many identified tipping elements in the clima
 te system are regional and may have no direct impact on the global mean te
 mperature\, cascades of tipping elements can potentially have an impact\, 
 initiated by the threshold of the leading tipping element in a cascade. \n
 \nI will also showcase a few examples of large scale climate tipping eleme
 nts and their interactions\, in particular related to the Atlantic Meridio
 nal Overturning Circulation and polar ice sheets. \n
LOCATION:MR2
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