Today on the Tuesday Wire, Christina kicks off the show with Dear Science, which has moved to Tuesday! She talks to Professor Allan Blackman from AUT about the distinction between "chemical weapons" and other weaponry, the accidental discovery of radioactivity 126 years ago, and new research showing dogs can go into mourning when their canine companions die.

Christina also speaks to Professor Bronwyn Hayward and Professor Anita Wreford, two researchers involved with the Intergovernmental Climate Change report released today. They discuss the findings of the report, economic and agricultural impacts, and what can be done to mitigate the global crisis.

Producer Trishil Dahya speaks to Associate Professor Stevel Weddell from the University of Canterbury about new research that can improve the quality of satellite imagery.

And finally, Christina speaks to senior linguistics lecturer Julia de Bres from Massey University about the government's Covid-19 communication strategy and the language used in their vaccination campaigns.