From NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

The Central England Temperature series is the longest running in existence, but still only goes back to 1659, pretty much the depth of the Little Ice Age, so it tells us little of real meaning.

However there exist many very real measures of temperatures going back much further – and I am not referring to the fraudulently used tree rings and the like.

HH Lamb published this chart in his book “Climate: Past, Present and Future” in 1977:

Note that none of these are Lamb’s own calculations; they are all based on work done by others expert in these fields of study.

They all concern summer months.

Generally speaking we are looking at Medieval temperatures between 1.0C and 1.5C higher than in 1900.

To put this into perspective, the rise in UK July temperatures since 1900 is of the order of one degree.

Moreover for tree lines to have been established at much higher altitudes means that Medieval warmth was not just a transitory thing – an odd year, or decade or so. The warmth must have been well established for centuries.

Lamb of course cannot tell us about winter temperatures, though records of Arctic sea ice tell their own story. But this evidence strongly points to a MWP just as warm in Europe as now.