Assessment of climate change impact on the Arctic environment

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Assessment of climate change impact on the Arctic
environment
? Glaciers ? Sea ice ? Marine ecosystems

• Dr. Jan-Gunnar Winther
• Director Norwegian Polar Institute

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Sea Ice Extent
- 11,2 per decade
?
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Sea Ice Extent, cont.
Light gray shading indicates the region where ice
occurred in both 2007 and 2010, while white and
dark gray areas show ice cover unique to 2010 and
to 2007, respectively
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Sea Ice Thickness
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BIOMASS
32 g
C. finmarchicus
28 g
(0.3 8.7 g DW m-2)
C. glacialis
0.5 g
(0.1 30.6 g DW m-2)
C. hyperboreus
(0.1 2.6 g DW m-2)
10 g
Søreide et al. 2008 DSR II
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We must expect further change in the Arctic in
future
Thank you for your attention!