The effect of diminishing sea ice isn't limited to increasing atmospheric greenhouse gas concentrations.
She had travelled to the Arctic and the Antarctic to study the sea ice.
Change (IPCC) in 2007 underestimated the rates of change now observed in sea ice.
Scientists have monitored sea ice conditions for about 50 years with the help of satellites.
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Arctic sea ice is usually 1 to 3 meters, or as much as 9 feet thick.
CNN: Polar bears resort to cannibalism as Arctic ice shrinks
Many sea ice terms are bundled with information about hazardous conditions and potential sources of danger.
Many scientists expect summer sea ice to disappear in a matter of decades.
And retreating Arctic sea ice provides even more visible data to support conclusions of warming.
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Average monthly Arctic sea ice extent data shows a clear deceasing trend since 1979.
Local communities have been noticing profound changes in the Arctic sea ice environment for several decades.
When the sea ice melts you have water, which has an albedo of 0.2.
"The sea ice goes from absorbing 20% of solar radiation to absorbing 80%, " said Dr Hinzman.
"Polar sea ice has an important function in moderating the global energy balance, " he said.
And elsewhere the retreat of the sea ice is already a factor in new exploration.
No sea ice means no seal hunt, which can mean no meat for sled-dogs.
Climate change is expanding Antarctica's sea ice, according to a scientific study in the journal Nature Geoscience.
Wintertime Antarctic sea ice has been increasing at a small rate and with substantial natural year-to-year variability.
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One task will be to take measurements on the sea ice for the European Space Agency (Esa).
BBC: NEWS | Science/Nature | Arctic trek to map climate impacts
According to WWF researchers, sea ice cover has declined by about 40% over the last quarter century.
Sea ice vocabularies of similar magnitude and sophistication are reported from Inuit communities across the circumpolar North.
Soon there may be no sea ice anywhere in the Arctic during some months of the year.
The extent of Arctic sea ice extent fell to 4.10 million square kilometers on August 26, 2012.
Several people have suggested I should mention how the sea ice around Antarctica has expanded this year.
The loss of Arctic sea ice is "big news", according to University of Alaska, Fairbanks, researcher Larry Hinzman.
Melting sea ice is unable to reflect the sun, and the revealed oceans absorb more heat, increasing temperatures.
The ban effectively postpones any work in Alaska until at least next summer, as sea ice prevents winter drilling.
Dr. CORELL: When the sea ice melts, it doesn't change the sea level.
"The time when Arctic sea ice is going to disappear is open to a lot of debate, " he said.
Overall, this will provide Esa with data covering about 2, 000km of sea ice.
BBC: NEWS | Science/Nature | Arctic trek to map climate impacts
This past summer, the Arctic sea ice dwindled to its second lowest level.
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