Arctic Sea Ice Is Growing Faster Than Before, But There’s A Catch

So how can it be that sea ice is declining in the Arctic but wintertime growth is increasing? The story lies in the magnitudes of both changes. While the Arctic sea ice is growing faster and higher during the winter months, it is more than offset by the melting in the summer months. So what we’ve seen is that the increased rate of sea ice growth in the winter helps to mitigate the melting during the summer. However, ultimately the warming summer temperatures continue to overall reduce the extent of sea ice.

Over the past few decades, sea ice across the Arctic Ocean has gotten smaller and thinner. Compared to the 1980s, today’s end-of-summer Arctic sea ice extent is about half. Since 1958, Arctic sea ice lost about two-thirds of its thickness, with nearly three-quarters of Arctic sea ice forming and melting each year.

Forbes Arctic Sea Ice Is Growing Faster Than Before, But There’s A Catch