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

Nature is giving us many signals about warming up of the world which must be heeded, says scientist author

Ice levels in the Southern Alps dropped by almost 15 per cent in the past four years, new research from climate scientist Jim Salinger shows.

Rodney Hide looks into climate change.

A man from one of the lowest-lying nations on Earth is trying to convince New Zealand judges that he's a refugee suffering not from persecution, but from climate change.

The Intergovernmental Panel on Climate Change has released the most comprehensive ever study on global warming, prepared by more than 200 scientists over two years.

A damning international report on mankind's role in climate change should be a wake-up call for urgent action, New Zealand environmentalists say.

Two of Britain's leading scientists have urged the setting up of a world programme to generate solar electricity that is cheaper than fossil fuel power by 2025.

As key indicators of climate change, penguins serve a crucial role for scientists examining what fluctuations in the white continent mean for the rest of the world.

Scientists are now almost certain that mankind's carbon emissions are warming up the planet.

Gales of up to 100km/h are set to lash the North Island this weekend after a brief respite from this week's heavy rain and gales.

There's a certain circularity in the story of horticultural lighting solutions start-up Biolumic.

Scientists will this week issue their starkest warning yet about the mounting dangers of global warming.

International leaders are failing in their fight against global warming, one of the United Nations' top climate officials has said.

My obligation not to harm existing people seems urgent and non-negotiable, but the harm I might be inflicting on future people is easy to ignore.