Rnz: Afternoons With Jesse Mulligan

Now to a "cleantech" startup aiming to eliminate carbon emissions from the making of steel. The idea involves replacing carbon with hydrogen, and CullBeck founders say it will reduce ironmaking processing times and overall costs. It also promises the generation of critical minerals - which are of geopolitical importance. Incubated at Victoria University of Wellington, the idea is now being backed by something called Aurora Climate Lab with the aim of commercialisation. CullBeck founder Martin Hacon is with Jesse.