The 2012 Arctic summer sea ice extent is the lowest since taking measurement. In a new three-part video series
from NOAA Ocean Today, learn about sea ice and why it is so important; how scientists are detecting and measuring change in sea ice; and the impacts of shrinking Arctic sea ice.
Part I: What is sea ice and why is it shrinking?
Part II: How do we measure ice?
Part III: Shrinking ice: Impacts
CPO's John Calder, Kathy Crane, Rebecca Lindsey, and Diane Stanitski contributed to the production of these videos. They are available for download on the Ocean Today website.
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