Our Changing World - Kauri and drought

The North Island is still in the grip of the most severe drought on record, and there are reports that native trees and wildlife are suffering. So what will happen if droughts like this become more common? How will iconic forest giants such as kauri cope? Cate Mcinnis-Ng is a research fellow in the School of Environment at the University of Auckland. She's studying kauri trees trying to understand how they use water and whether they are resilient enough to survive in a drier world. Alison Ballance meets Cate in some native forest at Huapai in West Auckland, to find out how she's going about her study.