Icebergs not related to global warming -

A NIWA scientist is dismissing suggestions the cluster of giant icebergs spotted off the South Island have anything to do with global warming.
About 100 of the bergs are floating in waters roughly 260 kilometres south of Invercargill. It is the closest they have been sighted in 70 years.
A Royal New Zealand Air Force P3-K Orion aircraft, on a routine fisheries patrol in the Southern Ocean, discovered the giant flotilla.
Oceanographer Dr Mike Williams says it is probably a combination of some big wind events over the Southern Ocean, and an iceberg being in the right place.
Dr Williams says icebergs are a hard thing to talk about in respect to global warming because these would have been remnants of a very large iceberg and very large icebergs calve very infrequently.
The largest of the icebergs stretches two kilometres, and towers about 130 metres above the sea.
Although many of the ice-bergs are expected to melt the further north they travel, it is thought that the largest could be visible from Stewart Island given the right weather and tidal conditions over the coming days.