This week on the Tuesday Wire...

For Dear Science this week, our expert Professor Allan Blackman chatted with us about analysing massive ice chunks, air pollution in ancient Rome, and a mystery volcano from 1831.

In our first weekly catchup with the National Party of the year, Wire host Castor spoke to MP Tom Rutherford about the Treaty Principles Bill, Regulatory Standards Bill, and the party’s plans for the rest of the year.

Producer Athena spoke to associate professor at Massey University’s College of Health, Marta Rychert, about the results of the latest New Zealand Drug Trends Survey

They also spoke to senior researcher at City University of London and Honorary researcher at the University of Auckland, Ladan Hashemi, about the effects of childhood trauma