Toxic flowers and invasive clams are forcing a rethink on the Waikato River

This image shows green sludge in the Waikato River with official warning signs.

The Waikato River is New Zealand’s longest river, central to Waikato iwi identity and customs, and the source of drinking water for almost half the country’s population. It is also becoming a case study of what happens when very different environmental pressures affect the same system faster than authorities can respond. A recent RNZ survey … Read more