Analysing ash, and Vanuatu's volcanoes | Our Changing World

New Zealand is a land formed by volcanoes, including some still active. Claire Concannon meets a researcher analysing ash deposits to determine if a future eruption might have dangerous levels of hazardous chemicals. Plus, she learns about a voyage to Vanuatu and the Solomen Islands to study the gases and ash of an active volcanic chain there. Sign up to the Our Changing World monthly newsletter (https://radionz.us6.list-manage.com/s...) for episode backstories, science analysis and more. Learn more: Researchers continue to study New Zealand’s active volcanoes like Whakaari (https://www.rnz.co.nz/national/progra...) and Ruapehu (https://www.rnz.co.nz/news/ourchangin...) to try to understand their patterns of eruptions. When Hunga Tonga Hunga Ha‘apai, just north of Tonga’s main island, erupted in 2022 it caused a worldwide tsunami. Ellen Rykers dug into the science behind the phenomenon (https://www.rnz.co.nz/national/progra.... The work of the National Geohazard Monitoring Centre (https://www.rnz.co.nz/national/progra...) is to keep on eye on earthquake, volcano, landslide and tsunami hazards 24 hours a day, 7 days a week. Auckland is built on a network of volcanoes, and underground lava caves (https://www.rnz.co.nz/national/progra.... Guests: Dr Jenni Hopkins, Victoria University of Wellington (https://people.wgtn.ac.nz/jenni.hopki...) Dr Ian Schipper, Volcano Waka Lab (https://www.volcano-waka-lab.com/) Go to this episode on rnz.co.nz for more details (https://www.rnz.co.nz/podcast/ourchan...)