Auckland's Harbour Bridge set for radical change as cycling and walking attachment gets resource consent.

Environment researchers have made fresh calls for a tax on polluters on the back of an OECD report highlighting rising pressures on our green backyard.

Earth has entered its sixth mass extinction with animals dying out at 100 times the normal rate, scientists have warned.

Hayden Smith and Ben Harris have been removing rubbish from the Waitemata Harbour for over 12 years, writes Sam Judd. Rain or shine, they are out there.

Car batteries, coffee cups and condoms - welcome to the underwater junkyard that lies just off our city beaches.

Two Auckland men met about two years ago and in that short time they have discovered they have the same passion - cleaning up waterways.

How do we stop plastic trash entering the Hauraki Gulf? Any beach walk shows it's a pressing problem, and one Aucklanders must solve.

If plastic trash diminishes your enjoyment of Auckland's beautiful marine environment, perhaps you could share your ideas on how to address the problem.

A tyre-recycling firm that has been blocked from adding to a tyre mountain in Kawerau has an undischarged bankrupt in a key management role and is overseen by a man who was linked to the crash of Cobb & Co.

"This is one of New Zealand's biggest ports - if we can't contain this, how are we going to deal with off-shore drilling? I don't think we can really take the risk."

As the people of Tauranga are once again having to deal with an oil spill in their harbour, we can't help but look back at the threat sunken ships pose to the environment, writes Sam Judd.

A publicly-owned entity must pay Mobil almost $1m in courts costs for its failed attempt to get the oil company to pay for the clean-up of Auckland's tank farm.

Energy Minister Simon Bridges agrees with some of the messages of protestors outside a petroleum summit being held in Auckland today.

New Zealand's monitoring of air pollution is lagging behind the rest of the developed world and needs to start picking up the tiniest, most harmful particles, Government's environmental watchdog....

A massive pipi bed in Whangarei harbour is dying and there are fears the change could destabilise the harbour - and Marsden Point itself, Radio NZ reports.

A group of young adventurers are taking to the water in some unusual kayaks in a bid to battle plastic pollution.

More than 25,000kg of plastic waste is littered in NZ each day — and each of us mismanages seven grams of it daily.

People who live beside Auckland's Southern Motorway are subjected to air pollution at nearly double the level of those 130m further away, research shows.

A public health warning has been issued for a picturesque West Auckland lagoon amid fears the water is contaminated by leaking septic tanks from baches.

If a map in the Herald this week was an accurate reflection of reality, there would be good reason to exercise considerable caution before swimming at many of Auckland's beaches.

Climate Change Minister Tim Groser says NZ faces "a big challenge" in making new commitments to cut emissions, following a global agreement in Peru.

Could teamwork deliver a plan to save the Hauraki Gulf for future generations? Science reporter Jamie Morton considers the issue.

Paul Little writes: The sci-fi blockbuster Interstellar is one of those movies that has got everyone talking - jam-packed with conversation-starters about humanity.