From here:
We see that the south coast of England (ignoring the Southampton-Portsmouth urban heat island) is on average 2C warmer than Glasgow or Edinburgh in summer, that's a distance of about 400 miles. Both are at sea level.
We are told that the average global temperature has increased by about 1C over the last 140 years.
To put that in perspective, a 1C increase is like moving about 200 miles further south. Divide that by 140 years; that's about a mile and a half per year.
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