News & Events

Monday Noon Seminar - Crumbling ice cliffs? Not-so-good news for low coasts

Monday, April 06, 2015, 3:30PM - 4:30PM

Speaker

Richard Alley

Penn State

Location:

ARC room 620

Marine Street, Boulder

In the two-and-a-half years since INSTAAR last hosted me, the science of sea-level rise from ice sheets has advanced rapidly. Evidence is accumulating that marine parts of the West Antarctic ice sheet, the Greenland ice sheet, and parts of the East Antarctic ice sheet have melted under CO2 levels not unlike those of today and much below possible near-future conditions. Models include the possibility that collapse of the West Antarctic ice sheet has already been triggered. And, inclusion of additional physics in one model reduces the time scale for sea-level rise exceeding 3 m from West Antarctica alone to perhaps 100 years after rapid shrinkage begins.

Video

Watch the seminar (camera shifts to follow speaker after 2 min).

Audience

Free and open to the public.