Underground rivers of water - who would've thought!

Everything you need to know about groundwater in New Zealand - Dr Rogier Westerhoff explains what it is, why it is so important and outlines the work that GNS Science is doing to map and protect our aquifers.

What is groundwater, why is it under threat and what can we do to protect it? On World Water Day, GNS Science expert Rogier Westerhoff explains why groundwat...