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100			_aBrugger, Sandra O _952030
245			_aPalynological insights into global change impacts on Arctic vegetation, fire, and pollution recorded in Central Greenland ice/
260			_bSage, _c2019.
300			_aVol 29, issue 7, 2019 : (1189-1197 p.).
520			_aArctic environments may respond very sensitively to ongoing global change, as observed during the past decades for Arctic vegetation. Only little is known about the broad-scale impacts of early and mid 20th-century industrialization and climate change on remote Arctic environments. Palynological analyses of Greenland ice cores may provide invaluable insights into the long-term vegetation, fire, and pollution dynamics in the Arctic region. We present the first palynological record from a Central Greenland ice core (Summit Eurocore ’89, 72°35’N, 37°38’W; the location of Greenland Ice Core Project GRIP) that provides novel high-resolution microfossil data on Arctic environments spanning AD 1730–1989. Our data suggest an expansion of birch woodlands after AD 1850 that was abruptly interrupted at the onset of the 20th century despite favorable climatic conditions. We therefore attribute this Betula woodland decline during the 20th century to anthropogenic activities such as sheep herding and wood collection in the sub-Arctic. First signs of coal burning activities around AD 1900 coincide with the onset of Arctic coal mining. The use of coal and fire activity increased steadily until AD 1989 resulting in microscopic-size pollution of the ice sheet. We conclude that human impact during the 20th century strongly affected (sub)-Arctic environments. Moreover, ecosystems have changed through the spread of adventive plant species (e.g. Ranunculus acris, Rumex) and the destruction of sparse native woodlands. We show for the first time that optical palynology allows paleoecological reconstructions in extremely remote sites >500 km from potential sources, if adequate methods are used.
650			_aBetula woodlands, _952031
650			_acoal mining, _949617
650			_a microscopic charcoal, _952032
650			_a paleoecology, _951487
650			_apollen, _951526
650			_aSCP (spheroidal carbonaceous particles) _952033
700			_a Blunier, Thomas _952034
700			_aGobet, Erika _952035
700			_aMorales-Molino, César _952036
700			_aLotter, André F _952037
700			_a Fischer, Hubertus _952038
700			_aSchwikowski, Margit _952039
700			_aTinner, Willy _952040
773	0		_012756 _916504 _dLondon: Sage Publication Ltd, 2019. _tHolocene/ _x09596836
856			_uhttps://doi.org/10.1177/0959683619838039
942			_2ddc _cART
999			_c12839 _d12839