Rnz: Afternoons With Jesse Mulligan

When we think of harmful emissions, we think it's fair to say most of us picture clogged motorways not busy hospitals. But environmental damage from anaesthetic gases is a thing; one hospital with 15 operating theatres will emit the equivalent to driving two million kilometres in a petrol-powered car. It's a problem that saw an Auckland University professor leap into action, inventing a device that captures almost all of the gases released during surgery. That device has just had a successful trial - for more about this Professor Saeid Baroutian chats to Jesse.