Thinner and Newer – Perennial Arctic Ice Cover Diminishing

A cool Arctic winter has brought sea ice back to broad expanses that melted clear during last summer’s unusual warmth. However, the amount of thick “perennial ice” has declined sharply across the Arctic, and climate experts say that global warming is the cause. Continue reading the full article…

Here is my graphic from today’s edition of The Washington Post.

 

na ice retreat

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