Abstract
Several large-scale components of the climate system may undergo a rapid
transition as critical
conditions are exceeded. These tipping elements are also dynamically
coupled, allowing for
a global domino effect under global warming. Here we focus on such
cascading events involving
the Greenland Ice Sheet (GIS), the West Antarctica Ice Sheet (WAIS) and
the Atlantic Meridional
Overturning Circulation (AMOC). Using a conceptual model, we study the
combined tipping
behavior due to three dominant feedbacks: the marine ice sheet
instability for the WAIS, the
height-surface mass balance feedback for the GIS and the salt-advection
feedback for the AMOC. We
show that, in a realistic parameter range of the model, a tipping of the
WAIS can inhibit cascading events by preserving the AMOC stability.