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Träfflista för sökning "WFRF:(Rysgaard Soren) "

Sökning: WFRF:(Rysgaard Soren)

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1.
  • Parmentier, Frans-Jan, et al. (författare)
  • The impact of lower sea-ice extent on Arctic greenhouse-gas exchange
  • 2013
  • Ingår i: Nature Climate Change. - 1758-6798. ; 3:3, s. 195-202
  • Tidskriftsartikel (refereegranskat)abstract
    • In September 2012, Arctic sea-ice extent plummeted to a new record low: two times lower than the 1979-2000 average. Often, record lows in sea-ice cover are hailed as an example of climate change impacts in the Arctic. Less apparent, however, are the implications of reduced sea-ice cover in the Arctic Ocean for marine-atmosphere CO2 exchange. Sea-ice decline has been connected to increasing air temperatures at high latitudes. Temperature is a key controlling factor in the terrestrial exchange of CO2 and methane, and therefore the greenhouse-gas balance of the Arctic. Despite the large potential for feedbacks, many studies do not connect the diminishing sea-ice extent with changes in the interaction of the marine and terrestrial Arctic with the atmosphere. In this Review, we assess how current understanding of the Arctic Ocean and high-latitude ecosystems can be used to predict the impact of a lower sea-ice cover on Arctic greenhouse-gas exchange.
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2.
  • Post, Eric, et al. (författare)
  • Ecological Dynamics Across the Arctic Associated with Recent Climate Change
  • 2009
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 1095-9203 .- 0036-8075. ; 325:5946, s. 1355-1358
  • Forskningsöversikt (refereegranskat)abstract
    • At the close of the Fourth International Polar Year, we take stock of the ecological consequences of recent climate change in the Arctic, focusing on effects at population, community, and ecosystem scales. Despite the buffering effect of landscape heterogeneity, Arctic ecosystems and the trophic relationships that structure them have been severely perturbed. These rapid changes may be a bellwether of changes to come at lower latitudes and have the potential to affect ecosystem services related to natural resources, food production, climate regulation, and cultural integrity. We highlight areas of ecological research that deserve priority as the Arctic continues to warm.
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