Climate Conversation Group

NIWA’s graph of the (unofficial) NZ annual temperature series. The highlight shows a remarkably mild rise for the last 60 years. How long must we wait for global warming to reach New Zealand?

On NIWA’s web site their discredited graph of New Zealand’s temperature history still clings to life. Look at it — it seems to flutter its wiggly lines, hoarsely whispering: “believe me, believe me.”

This is the graph NIWA’s lawyers completely disown in a declaration to the High Court that it is “not an official graph.”

Why do they continue to display it? It lacks any kind of scientific justification or integrity. The main authority describing its methodology has never been cited, never been copied, never been peer reviewed.

None of the seven weather stations (only seven for the whole country, out of hundreds?) showed significant warming in their raw readings. But six have had a “temperature rise” imposed by adjustments, 90% of which served to create warming.

Have NIWA no shame? They should have withdrawn this spurious piece of scientific chicanery months ago. Instead, it remains there to lie to our children.

We’re still waiting for the new version, reviewed by the Australian Bureau of Meteorology, promised by NIWA last March. Will we see it before Christmas 2010? When we finally do see it, will it still show nearly a degree of warming over the 20th Century?

If it does, how will they justify that? If it doesn’t, how will they face their public, for what will happen to their claims of anthropogenic global warming?

There’s a great deal hanging on the new version of this innocent-looking graph. And I mean “hanging.”

The right setting for tough international negotiations; it would keep everyone cool.

In the NZ Herald last Wednesday, David Venables, executive-director of the Greenhouse Policy Coalition, talked about world leaders at Cancun soon putting “the finishing touches to a global agreement on climate change.”

Why do we want such an agreement?

Though Mr Venables, oddly, leaves it unsaid, it is to reduce our emissions of “greenhouse gases” or “carbon” to halt what we now call “climate change.”

But is this enough? Will this stop climate change? No, it won’t, and there are two reasons for that: NZ’s tiny emissions and the eternally changing nature of the climate. Read more… »