RNZ: Our Changing World

22 EpisodesProduced by Radio New Zealand

Getting out in the field and the lab to bring you New Zealandstories about science, nature and the environment.

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Our Changing World for 21 March 2019

March 21st, 2019


Barium is a chemical element that hates being on its own, and experts from Orana Park and Auckland Zoo are looking after hand-reared kakapo chicks.

Barium - never found on its own

March 18th, 2019


Barium is never found on its own in nature, as it loves buddying up - but a version of it is found in hospitals. Allan Blackman from AUT reveals barium's secrets in episode 8 of Elemental.

Fat happy kākāpō chicks

March 15th, 2019


Thirty four kākāpō chicks are putting on plenty of weight in wild nests as the rimu fruit ripens, and 23 chicks are also being hand-reared, in episode 13 of the Kākāpō Files.

Astatine - awfully rare

March 15th, 2019


No one has ever seen astatine, which shares the distinction of being one of the rarest naturally-occurring elements on earth. Find out more with Allan Blackman from AUT in episode 7 of Elemental.

Crime-busting software package wins PM's Science Prize

March 14th, 2019


An ESR software package that analyses complex crime scene samples containing DNA from multiple people, has won the 2018 Prime Minister's Science …

We need to talk about climate change, says science prize winner

March 14th, 2019


James Renwick loves talking about the science underlying climate change, and this willingness has won him the 2018 Prime Minister's Science Communication Prize.

Young physicist wins the PM's Future Scientist Prize

March 14th, 2019


Modelling granular materials such as corn and salt has earned Onslow College physics student Finn Messerli the school's third Prime Minister's Future …

Our Changing World for 14 March 2018

March 14th, 2019


The 2018 Prime Minister's Science prizes have gone to crime-busting software, a climate change communicator and a young physicist.

Arsenic - the well-known poison

March 11th, 2019


Arsenic is a well-known killer that was once dubbed 'succession powder'. Join Allan Blackman from AUT in 8 episode of Elemental, a journey through the periodic table.

Argon - every breath you take

March 8th, 2019


Argon is in every breath you take and its inertness is its best feature, as we discover with AUT chemistry professor Allan Blackman, in episode 5 of Elemental.

Bull kelp genes and earthquake uplift - a surprising connection

March 7th, 2019


New research shows that bull kelp along a tectonically uplifted stretch of coast south of Dunedin has a surprisingly different genetic signature to …

Our Changing World for 7 March 2019

March 7th, 2019


We've a story about bull kelp and earthquake uplift for Seaweek, and we meet some volunteer kakapo helpers.

Kākāpō helpers

March 7th, 2019


Volunteers from around the world are helping the kākāpō team, with tasks ranging from feeding birds and people, looking after the power system on …

Antimony - takes lives, saves lives

March 4th, 2019


Antimony can be used to take lives - and to save lives. Check out episode 4 of Elemental with Professor Allan Blackman from AUT.

Kākāpō rangers

March 1st, 2019


There is a hard-working team of island rangers helping save kākāpō, working day and night, and the chick tally has reached 44, in episode 11 of the Kākāpō Files.

Our Changing World for 28 February 2019

February 28th, 2019


Professor Allan Blackman from AUT explores the chemical elements actinium and americium, and the Kakapo Files podcast catches up with the work of the island rangers.

Americium - a radioactive, domestic do-gooder

February 27th, 2019


Invented during war, radioactive americium has become a bit of a do-gooder that is in most homes. Find out more with AUT's Allan Blackman in episode 3 of Elemental.

Aluminium - light & versatile

February 25th, 2019


Aluminium is a light, well-known metal with lots of useful properties. Join AUT chemistry professor Allan Blackman for episode 2 of Elemental.

Actinium - rare & radioactive

February 22nd, 2019


The first alphabetical element in the periodic table is actinium. It is a heavy radioactive element, as we discover in episode 1 of Elemental, with Professor Allan Blackman from AUT.

Plastic pollution in streams - a citizen science effort

February 21st, 2019


NIWA freshwater scientist Amanda Valois is co-opting citizen scientists to work out where plastic rubbish in streams is coming from.

Our Changing World for 21 February 2019

February 21st, 2019


A citizen science project on plastic pollution in streams and flying kākāpō sperm takes to the air.

Flying kākāpō sperm

February 21st, 2019


In a world-first for kākāpō conservation, a drone (nicknamed the 'spermcopter') has flown kākāpō sperm across Whenua Hou / Codfish Island - the Kākāpō Files was there for episode 10.

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