Sir Tim Wallis' chopper pilot son presumed dead after Lake Wanaka crash.

How to minimise your stress on the world's resources.

Firefighting foam used in 1996 crash may have contaminated Bulls' water.

Reducing waste one school at a time. Made with funding from NZ on Air.

A man and woman have drowned after being swept off rocks at Muriwai Beach in West Auckland.

A man and woman have drowned after being swept off rocks at Muriwai Beach.

Rating for the Matarawa scheme much less than interim figures put up online.

The health of the Kaituna River is a priority for all. Made with funding from NZ On Air.

Is there life on Mars? Made with funding from NZ On Air.

Water supply to the entire town of Winton has been cut off.

The six-year legal battle has come to an end in the Supreme Court.

A new commission should be created to help stop decline of our waterways, top forum says.

Defence Force is unsure how to respond to Horizons Regional Council's abatement notice.

Special tribunal considers re-notification of WCO application, given new science findings.

An algae species that creates mucus-like lake snot has likely now spread to Lake Taupo.

NZDF will need to report back by July.

Warmer-water events can worsen the nutritional balance of fish, new study finds.

With plastic now being found in Antarctica's pristine waters, has action come too late?

Watercare forecasts spending $5.5 billion on upgrading infrastructure over next decade.

Horizons Regional Council to spend $100,000 looking for sources of water contamination

50 years on from the Manapouri saga, NZ's laws have failed its environment, writer argues.

Teen talks for the first time about the Cascade Falls tragedy that killed his twin.

Conditions in the refugee camp will only get worse as monsoon rains arrive, Kiwi says.

Ten firefighting crews with six water tankers are battling a blaze near Methven.

National Geographic's cover is going viral featuring image called "one for the ages".

Funding for mental health, first home buyers and public transport were high priorities

Scientists are warning against buying a $4000 water machine.

A spokesman for Ōhakea residents says human health, land values are the two main issues.

Tough measures aim to control pollution in rural waterways.

Adrift for days, one sailor became so thirsty he drank his own urine.