Lois Williams investigates efforts to preserve the water and wildlife in Northland's Wairua River.
Groups worried about the state of New Zealand's rivers are planning to set up a national network of Environmental River Patrols at a meeting in Wellington next weekend.
Insight investigates one of the drivers behind the move, the efforts to improve the health of a major Northland river, the Wairua.
(The meeting to set up the Environment River Patrol Aotearoa is being held in the Wellington Town Hall on Saturday 24th starting at 11a.m)
Coming Up on Insight
8:12 am Sunday 14 February: New Cancer Drugs and Funding Conundrums
New immunotherapy drugs are the hot topic in cancer internationally.
They stimulate the body's own immune system to fight disease, providing a possible cure for some patients.
With the highest rates in the world of the deadly skin cancer melanoma, and no effective funded treatment for advanced disease, patients here are demanding action over the drug, Keytruda.
But the price is eye-watering and Pharmac is questioning the effectiveness.
RNZ's health correspondent, Karen Brown, investigates how good these new-generation drugs are, and the debate over whether or not NZ should fund them.