Following the discussion on insurers, RMS and climate change, someone pointed out that Lloyds of London also quotes a certain reconstruction of past temperatures. It wasn’t on the front page, but it wasn’t difficult to spot.
From the document linked as “Adapt or Bust” but included as part of a document on “Catastrophe” as part of the “360 Report” series (page 14) comes this:
land and air
The 1990s was the warmest decade
for a thousand years
Facts & stats
In addition to sea temperatures, land and air temperatures
provide an important measure of climate variation, and
have been reliably monitored for many decades.
It is generally agreed that the 1990s was the warmest decade,
and 2005 the warmest year, in a millennium. The below well
known graph illustrates that current temperature levels are
well out of line with the past.
It doesn’t inspire confidence in me that Lloyds still uses this to prove its case. Oh, and this was published in 2006, so no excuses about not knowing about the Hockey Stick’s true provenance will be entertained.