Perhaps the least interesting aspect of the High Court hearing which started today — the NZ Climate “Science Education” Trust (NZCSET) versus the National Institute of Water and Atmospheric Research (NIWA), before Justice Venning — is the ostensible casus belli, the construction of a long term temperature record for New Zealand. The law does not concern itself with trifles, and the minutiae of the techniques used to homogenise temperature records to account for site moves and instrument changes is nothing if not trifling with respect to the climatological big picture. New Zealand and the world have warmed significantly over the last 150 years, of that there is no doubt, and no amount of legal action will make warming go away and New Zealand’s glaciers recover the mass they’ve lost.
Nor has the the long term New Zealand temperature record been important to the formulation of government policy on climate change. That has relied on international diplomacy, the workings of the United Nations and the international consensus on the science of climate, all leavened with a healthy dose of local politics. The NZ temperature record played no part in either the design of the emissions trading scheme or its watering down.
So if this case is not about temperature records and their relevance to government policy, what is it about? We need to consider a few key questions.
- Who is bringing the action?
- Who is paying the lawyers?
- Who wins, and who loses?
The answers are bad news for the taxpayers and citizens of New Zealand — and perhaps the world.