On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Constructed Wetlands

Constructed Wetlands

Natural wetlands have been called the “kidneys of the landscape” because of their ability to store and transform contaminants before they reach waterways. In this video NIWA scientist Chris Tanner talks about the potential constructed wetlands have to mimic these natural systems and treat through-flowing waters.