Daily Archives: 07/02/2010

The two versions of the official NZ temperature data — the NIWA graph in the foreground has been “adjusted” but NIWA doesn’t know how; the graph behind it shows raw NIWA temperatures since 1850; there’s no warming. Both graphs use official NIWA data, but NIWA don’t know what changes created the warming and, until they produce a replacement, there’s no scientific reason to accept that version. See larger versions of the raw and adjusted temperatures.

Regular readers will know that we asked NIWA how they adjusted the NZ temperature series. In reply, they distracted, deceived and disparaged us. We checked what they told us and it was false. They lose.

They admit they never had the temperature adjustments we were asking for. Why didn’t they just say so in the beginning? We and the NZ public await an apology for their dissembling.

They’ve done the hard thing and admitted the truth. So the good news is they can now get on with some real science. They say they will “recreate” the adjustments. Whatever they mean by that, it must be an improvement on trying to denigrate us when we ask for information. It is also good that they reexamine the 30-year-old claims of warming that wobble now they lack any scientific support. In fact, there is evidence they are false. More on that later. Continue Reading →

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