Sam Judd writes that perhaps the biggest environmental problem we currently face is the contamination of our waterways by nutrients.

United Future and the Maori Party have teamed up to block the Government’s major reforms of the Resource Management Act.

Scientists are keen to discover what effect the hustle and bustle of downtown Auckland has on those who walk its streets every day.

A petrol company says it should not have to pay clean-up costs for decades of petrochemical pollution on prime waterfront land.

The current school holiday-related reduction in traffic demonstrates our roading network works well when we take cars off the road, writes Sudhvir Singh.

Commuters in Auckland and Christchurch are exposed to levels of air pollution similar to those found in other large cities around the world, a new study reveals.

A fast-growing global company which salvages non-recyclable waste items and turns them into new products is about to be launched in New Zealand.

Individually wrapped coffee servings, plastic-wrapped produce in polystyrene trays and the 180 million disposable cups Kiwis use a year are choking our landfills unnecessarily.

Nearly one in three bags containing human body parts taken during healthcare procedures have leaked on their way to disposal.

Garth Harris, Ron Martin and Jim Syme argue against a new marine reserve proposed for an area off the coast of Waiheke Island. "How would this area of Waiheke cope with such a visitor attraction? "

Scientists are trying to solve the mystery cause of persistent high levels of water pollution at some of Auckland's west coast beaches.

If you're worried about dressing ethically, chances are you think about sweatshop conditions in developing countries, writes Tullia Jack.

New Zealand is perfectly positioned to road-test the next generation of ultra sustainable "green cars", which could play a crucial role in our future, a visiting US innovator says.

In London they're making some big changes to the roads, adding two-way segregated cycle tracks along around 25 Km of bike routes.

About 225 million tonnes of plastic are produced globally each year. New Zealand imported nearly 210,00 tonnes of nurdles last year and 61 per cent of plastics made in New Zealand are used for packaging.

Godwits fly here every year from Alaska, but new developments in China threaten their route. How many will be back? A new book reveals the threat to their continued globe-spanning migration.

Wanganui residents are fed up with the "disgusting" foul stench coming from the city's water treatment plant, but know it will be a while before the problem is fixed.

Hu Li's heart sank when she realised that she could gauge how close she was to home by the colour of the air.

Lime will be spread over Wanganui's wastewater treatment ponds from today to try and stifle the foul odour coming from the plant and drifting across most of the city.