Deceptive headline aside – David Rose (Sunday Mail, UK) provides the details on the decline that was hidden, how it was done, and why it was done.
In effect, the climate alarmists thought they had a tree-ring dataset that would disprove the medieval warm period (MWP). The only trouble was that the dataset depicted temperatures falling since 1960, which pretty much exploded its value as a descriptor of the past, let alone a projector of the future.
So, as Iain Dale reveals in his post on the subject, the alarmists simply stopped showing the tree-ring dataset data after 1960, letting the actual temperature data rise by its lonesome – and giving the anti-MWP tree-ring data far more credibility that it deserved.
This was “Mike’s Nature Trick” used to “hide the decline.” Of course, we now know plenty of other examples of this regarding actual temperature data, but this was the first one revealed to the world by the unnamed whistleblower.
That this was allowed by the entire alarmist community – including the IPCC – reveals how thoroughly corrupted it became.