The New Zealand Government's chief climate advisory unit NIWA is under fire for allegedly massaging raw climate data to show a global warming trend that wasn't there.
The scandal breaks as fears grow worldwide that corruption of climate science is not confined to just Britain's CRU climate research centre.
In New Zealand's case, the figures published on NIWA's [the National Institute of Water and Atmospheric research] website suggest a strong warming trend in New Zealand over the past century:
The caption to the photo on the NiWA site reads:
From NIWA's web site — Figure 7: Mean annual temperature over New Zealand, from 1853 to 2008 inclusive, based on *
*between 2 (from 1853) and 7 (from 1908) long-term station records. The blue and red bars show annual differences from the *
*1971 – 2000 average, the solid black line is a smoothed time series, and the dotted [straight] line is the linear trend over 1909 *
*to 2008 (0.92°C/100 years).
But analysis of the raw climate data from the same temperature stations has just turned up a very different result:
Gone is the relentless rising temperature trend, and instead there appears to have been a much smaller growth in warming, consistent with the warming up of the planet after the end of the Little Ice Age in 1850.