Trees

Robert Penn cut down an ash tree to see how many things could be made from it. After all, ash is the tree we have made the greatest and most varied use of over the course of human history. His book… Audio, Gallery

Motivated by the converging problems of environmental degradation, over population, peak oil and climate change, Olmec and Melisa Sinclair employ permaculture principals to develop resilient solutions… Audio, Gallery

The Tree Council warns large areas of vegetation in Auckland will be cut down in the next decade thanks to a law change that comes into effect on Thursday. Changes to the Resource Management Act mean… Audio

Outdoors man and adventurer Kennedy Warne discusses apex predators - lions and great white sharks, which have been in the news. Also recent research on the therapeutic and human health benefits of… Video, Audio, Gallery

A new University of Auckland study has found the city's tree numbers are dwindling due to housing intensification and a lack of safeguards to protect them. Dr Margaret Stanley is the study's… Audio

The Throne Station in Marlborough overlooks the Waihopai spy base and a sea of vineyards. David Dillon took over the sheep-and-beef farm from his father nearly 40 years ago and now his son Tommy is… Audio

Aucklanders opposed to the chopping down of six 80-year-old pohutukawa to make way for a road extension say they've been ignored in the decision-making process. Audio

Adapted by David Somerset. Read by Dick Weir. Audio

An ecologist and opponents of a new road are lamenting the expected loss of ancient kauri trees now the 800-million-dollar highway between Puhoi to Warkworth has won final approval. Audio

What are trees worth to you? Dr Margaret Stanley, Alison Greenaway and Robyn Simcock are part of a team trying to understand what value people put on trees in New Zealand's largest city. Audio

Conservationist Gerry McSweeney talks about old growth forest and using 1080 for biodiversity restoration at a landscape scale Audio

While scientists try to understand kauri dieback disease and its effects, people have to take precautions to prevent it spreading. Audio

To the Chatham Islands, where 160 Moriori tree carvings remain even as the Department of Conservation has been criticised in the past for not doing enough to preserve them. Audio

Dendrochronologist Jonathan Palmer finds a surprising Christmas connection when he counts the tree rings of the world's loneliest tree. Audio

Green-fingered and Threatened Plant Scientist Dr Peter de Lange on the great bio-mass that grows around us... New Zealand's own Christmas tree, the pohutakawa. Audio

Ulric Baumberger has three thousand Christmas trees growing on his Matangi property near Hamilton. He, his wife and young twins arrived in New Zealand nearly twenty years ago and he started growing… Audio