Amount of old ice in Arctic, 1987-2013

[Renew Deal]

The winter ice pack in the Arctic was once dominated by multi-year*, thick ice. Today, very little old ice remains. This animation shows maps of sea ice age from 1987 through the end of October 2013. Age class 1 means "first-year ice," which is ice that formed in the most recent winter. The oldest ice (9+) is ice that is more than 9 years old. Animation by NOAA climate.gov, based on research data provided by Mark Tschudi, CCAR, University of Colorado. *Revised on 2/21/14. Caption originally said "old." Revised to "multi-year" to reduce ambiguity.

[oldandhappy]

1. Great graphic.

Scary. How can people deny that this is happening? Hope this visual explodes all over the internet. Thank you.

[pinto]

2. Great visual timeline.

+1

[Fred Sanders]

3. Since 2005 shrinkage has been incredible.....show this in Congress maybe...who has the guts?

[Cal33]

4. Even if this were to be shown in Congress, the Repblicans will probably

come up with a visual of their own (and cooked up by themselves, of course).
And it wouldn't bother them, either.