Shrinking Glacier in Antarctica

From time to time, articles appear relating to the shrinking glaciers and ice melt in Antarctica, and more specifically in West Antarctica. The Pine Island Glacier has been cited as being of concern. The glacier drains an area of Antarctica larger than the United Kingdom.

While melting glaciers are a concern, and inevitably will impact on sea level, it would appear that the Pine Island Glacial melt is unlikely to be due to man-caused (anthropogenic) activity. A study published in Nature indicates that there is evidence of active volcanic activity under the glacier.

This doesn’t minimise the potential risk of melting in West Antarctica. But it does mean that a presumption that the melting is due to anthropogenic climate change needs to be considered in the light of other physical forces.

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