På nordpolen og særligt Grønland falder der mere sne om året end på sydpolen.Samtidig er det længere tid siden, der var isfrit på sydpolen end på nordpolen.The ages obtained from the analyzed samples were in agreement with the given age estimates.In addition to previous validation work, this independent verification gives further confidence that the investigated method provides the actual age of the ice.Therefore, we conclude that volcanic activity played a critical role in driving centennial to millennial-scale Holocene temperature variability in Greenland and likely beyond.. S9), indicating that abrupt climate change events during the Holocene may result from changes in several forcings (volcanic, solar, and meltwater inputs), with possible synergetic effects.

They bring enchantment to summer nights and the show is free for all, you just have to be still and enjoy.

Dette betyder at iskerner fra nordpolen er lettere at analysere pga.

den højere opløsning (mere is per år) end iskerner fra sydpolen.

which compared the spacing between frost ring events (physical scarring of living growth rings by prolonged sub-zero temperatures) in the bristlecone pine tree ring chronology, and spacing between prominent acids in a suite of ice cores from both Greenland and Antarctica.

The main conclusion was that ice core dates, in particular those ice cores relied upon the Greenland Ice Core Chronology 2005 ( by a collaboration including Earth scientists, dendrochonologists, and historians, the chronology of the Greenland North Eemian Ice Drilling core (NEEM) has been reassessed and re-dated, confirming that such an offset does indeed exist in the GICC05 timescale below AD 1000.