Carbon Dioxide
Science: Lost elephant habitats, glass brick revival,
Science commentator Laurie Winkless joins Kathryn to talk about a big study that's looked at the scale of loss of elephant habitat in Asia. Over three centuries two thirds of suitable habitat - an… Audio
Carbon dioxide shortage could shut down drinks bottling plant
A major drinks bottler says it is on the verge of running out of carbon dioxide which would shut down production.
When good science takes time
This sea week Our Changing World joins Dr. Kim Currie on the Munida transect time-series - a long running investigation of how the chemistry of the oceans off New Zealand is changing. Audio
How to eliminate C02 emissions from industrial materials
Karyn speaks to a New Zealand scientist working on how to eliminate carbon dioxide emissions from steel. Audio
Alison Ballance retrospective 4: ocean acidification
Alison Ballance's foray into the vaults finds a feature on ocean acidification, The Acid Test and adds a 2021 update. Audio
Our Changing World for 22 April 2021
In this week's retrospective, Alison Ballance revisits an ocean acidification special feature called The Acid Test. Audio
Exercising could lead to spike in indoor air pollution
High body emissions released during exercise can combine with bleach cleaners to form potentially harmful indoor air pollution, according to a new study conducted by researchers at the University of… Audio
Grass and the science of urban CO2
Jocelyn Turnbull from GNS Science is measuring how much CO2 we're producing in NZ towns - and she's doing it by cutting the grass. Audio
Our Changing World for 22 October 2020
GNS Science is measuring how much carbon dioxide we're producing in different towns as part of the Carbon Watch NZ project. Audio
Carbon Watch & 50 years of CO2 measurements in NZ
Dave Lowe on measuring CO2 in New Zealand for 50 years, and how Carbon Watch NZ is a bird's eye view on our carbon balance. Audio
Our Changing World for 15 October 2020
Fifty years ago Dave Lowe started measuring carbon dioxide in New Zealand's atmosphere. And Gordon Brailsford and Sara Mikaloff Fletcher talk about Carbon Watch NZ project. Audio
Covid-19 truth and lies - can New Zealanders tell the difference?
The latest Research New Zealand survey set out to establish to what extent New Zealanders believe various facts and alternative (or conspiracy) theories around Covid-19. Emanuel Kalafatelis joins the… Audio
How gardening creates a time warp
Gardening is more than a relaxing hobby. It's good for your health, whatever age you are. Dr Harriet Gross is a psychology professor at Lincoln University in the United Kingdom. She explains why… Audio
Scientists warn indoor carbon dioxide levels could be a health hazard
A new report suggests that indoor levels of carbon dioxide could be clouding our thinking and may even pose a wider danger to human health. Audio
Growing concern over rising acidity levels in seawater
New Zealand's waters are becoming more acidic due to the absorption of carbon emissions. It's not an issue confined to NZ - the world's oceans are experiencing the fastest rate of acidic change in 25… Audio
The Power of Poo
A prototype methane recovery system is up and running on a 900 cow farm in Southland. Dairy Green agricultural and engineering consultant Quinton Scandrett says it took three years to plan and build… Audio, Gallery
Sugar planet: rising CO2 adds carbs to crops
The world is getting sweeter, as rising CO2 levels change not only our climate but our plants. Key crops like rice, wheat, barley and potatoes now contain more sugars and less protein than ever… Audio
Should meat be on the menu?
Australian author and journalist David Mason-Jones is selling copies of his book 'Should meat be on the menu?' at the Te Mania Angus Bull Sale in North Canterbury. The book explores the widely held… Audio
Solving the mystery of the Kaikōura bubbles
Mysterious bubbles and warm water, known as Hope Springs, which appeared after the Kaikōura earthquake, appear to be coming from deep in the earth's crust. Audio
Marine sponges may be climate change 'winners'
New research shows that ocean acidification may make some marine sponges more resilient in the face of climate change and warming water. Audio