Ozone
Our Changing World – Keeping track of ozone
Almost 40 years on from the first reports of the Antarctic ozone hole, and 35 years since the Montreal Protocol to ban CFCs came into effect, what’s going on with the ozone hole? How does it form? How… Audio
Ozone holes & UV radiation
NIWA's Richard Querel talks about the ozone hole, including this year's large one, and Ben Liley explains why NZ has such high UV levels. Video, Audio
Our Changing World for 26 November 2020
NIWA experts explain the science behind this year's large ozone hole and New Zealand's high UV levels. Audio
Polarity puzzle: is the earth's magnetic field reversing?
Changes in the the earth's magnetic field have scientists wondering what's going on. We know that in the past, south was north and north was south. Now there are reports that patches of the earth's… Audio
Antarctic ozone hole grows
The seasonal hole in the ozone layer over Antarctica has widened to near-record size, the United Nations weather agency says.
Using Google Balloons to Study the Stratosphere
Google's Loon project aims to deliver internet access to remote areas, but the balloons are also helping scientists to study changes in the stratosphere. Audio
Ozone hole responsible for extreme weather events- UN
A UN report suggests ozone changes may be to blame for the increase in extreme weather events in New Zealand, and is also changing the country's summers. Audio
