By Paul Homewood
From the Telegraph:
One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year ice, is the portion of the sea ice that survives the summer melt season. Perennial ice may have a life-span of nine years or more and represents the thickest component of the sea ice; perennial ice can grow up to 4 meters thick.
NASA have been up to their tricks again. (Click on the Telegraph to watch the video)
The first con is that, although the video runs monthly progressions since 1984, it finishes in September 2016. Subliminally, you will have seen much larger extents of ice rolling through earlier years, simply because you are looking at winter and other months when extent is much greater anyway. Then, when the video stops at the end, you see…
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