Here is the real explanation of the "hockey stick" trick from the UK.

Real all about it here!

.... According to his tree rings, the period since 1960 had not seen a steep rise in temperature, as actual temperature readings showed - but a large and steady decline, so calling into question the accuracy of the earlier data derived from tree rings.

This is the context in which, seven

weeks later, Jones presented his ‘trick’ - as simple as it was deceptive.

All he had to do was cut off Briffa’s inconvenient data at the point where the decline started, in 1961, and replace it with actual temperature readings, which showed an increase.

On the hockey stick graph, his line is abruptly terminated - but the end of the line is obscured by the other lines.

‘Any scientist ought to know that you just can’t mix and match proxy and actual data,’ said Philip Stott, emeritus professor of biogeography at London’s School of Oriental and African Studies.

‘They’re apples and oranges. Yet that’s exactly what he did.’....

Consider and ponder.

xtnyoda, shalomed