Good Morning

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Changing Climate Realities and Impacts
Good Morning
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Lets begin with a focus on current scientific
understandings of climate change at global scales
and across hundreds of thousands of years.
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. climate changes are being experienced
particularly intensely in the Arctic. Arctic
average temperatures have risen at twice the rate
as the rest of the world in the past few decades,
with Alaskas temperature increases at 8 to 10
times the global increases.
Video Source ACIA and BBC
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What did we learn about the Arctic Region?
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Does this Melting of Sea Ice have other Effects,
such as an Impacts on Oceanic Circulation?
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Changes in Oceanic Temperatures of Importance.
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Conveyor OFF

• Strong cooling in North Atlantic
• Warming everywhere else
• No net global change

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Projections for Sugar Maples-- Eastern U.S.
Now
2080
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Biodiversity impacts in the Arctic Region.
Polar Bears are profoundly impacted by the loss
of sea ice.
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What happened to Arctic Sea Ice in 2005 and 2006?
The maximum amount of sea ice in the Arctic
winter has fallen by 6 percent over each of the
last two winters, as compared to a loss of merely
1.5 percent per decade on average annually since
the earliest satellite monitoring in 1979. The
average over recent years is 10 percent/decade.
2006
Lowest on record during human times
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Based on Current Data
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47 of 49 Different Model Climate Projections
Indicate Substantial Drought for the Southwest
Region of the U.S. Reported at NAS Meeting Dec 1,
2006
Projections to 2100
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Thank You
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