The original settlement of Salisbury was known as Old Sarum. The population and cathedral city had moved in the 14th century to New Sarum, at the foot of the Old Sarum hill.
With all the nonsense that there is in the world why this particular nonsense? Lemme tell ya: friend of mine showed me a graph showing that we had historically low levels of CO~2~. Took me a while to catch on but it didn't have the Holocene individually marked, it was mostly concerning the epochs before mankind arrived. So the argument is totally irrelevant to the discussion of greenhouse gasses. Unless... unless you could convince yourself that there were lost civilisations that existed in distant pre-history. Of course there's absolutely zero evidence for these... must be a cover-up.
It's a scam and we shouldn't be encouraging it. The thieves put the spikes up every day and then the crow distracts people while the thieves pick their pockets. The crows only get 15% of the proceeds.