

The bottom chart shows the ice thickness "anomaly" - the departure from normal thickness (click on it for full size) - for mid-December. Normal is based on a multi-decade average. You can see that Frobisher Bay and the surrounding waters are all in the red - they are owed some ice. Some of the bay has frozen since these images were prepared.
The low ice thickness across the Arctic is part of a long-term trend. The current low in the SE Arctic has also been driven by the prevailing weather conditions over the past couple months. As was reported in the CBC News yesterday, a lingering high pressure system has held temperatures well above normal and limited ice formation. That is the same weather pattern that directed the cold Arctic air masses to east coast of North America and to western Europe and caused the huge early winter snowfalls. So when you hear scientists say that record snowfalls could be related in part to climate warming and the melting Arctic, this is what they mean.
Hudson Bay becoming a new Baltic Sea?
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