The Nuup Kangerlua and Sermilik regions, in southwestern and southeastern Greenland respectively, are two localities that experienced deglaciation after the Holocene warming period started. Warming atmospheric temperatures as well as warming waters in the Labrador Sea accelerated the speed of deglaciation which started on the coasts of Greenland before heading inland. Moraines located in the interior of the Nuup Kangerlua area have been dated to 8.1 to 8.3 thousand years ago; they mark a local cooling that caused glaciers to re-advance and leave moraines behind.