Many suspect the design of ETS, with no price floor and emissions cap, was never intended to make a difference to our climate changing emissions.

New research charges that humans are driving accelerating sea level rise.

While climate change presents one of the greatest challenges of our time, it's also one of the biggest economic opportunities.

A sense of 'alarm and panic' is being felt at the Pacific Climate Change Conference as rising sea levels threaten small nations.

Sam Judd writes, "Today I thought that a story about how awesome the New Zealand coastline is would be appropriate, because what is not to love out here?"

Global temperatures will continue to soar over the next year as rising levels of greenhouse gas emissions and the effect of El Nino.

Actor Leonardo DiCaprio greets the Pope in Italian and discusses the environment.

The utterings of our leaders demonstrate how global warming has moved from a scientific theory where integrity matters, to a political movement where it doesn't, writes Robin Grieve.

Trade deal gives polluters power to sue governments who try to implement the Paris agreement.

In Europe the daffodils are in bloom and ski fields are bare in the warmest December ever. John Vidal asks how worrying is the world's strange weather.

The choices we make in the next five years will determine our climate future, writes Len Brown.

The Paris Agreement on climate change ticked one essential box from a narrow national point of view: it countenances the use of international trading in carbon credits to meet countries' emissions targets.

Severe climate change and global warming is already "baked in" even if carbon emissions ended tomorrow. Dangerous climate change is unpreventable, writes Winston Peters.

It's good news, but not a reason to be complacent; global emissions actually fell in 2015.

At present, the atmosphere resembles a wild, uncontrolled rubbish dump. Polluters are free to sink their carbons into the atmosphere simply because they can, writes Klaus Bosselmann.

Getting so many nations, including "developing" nations such as China, to sign on to emissions reductions certainly makes the agreement historic.

Nearly 200 countries strike deal on how to combat climate change, but it's what the energy companies do next that could make or break the agreement.

A global climate change deal has been hailed in New Zealand as a historic step, but scientists and environmentalists say the deal now needs to be backed with action.

The word "historic", already being used to describe the just-accepted Paris climate agreement, is more than warranted.

The Paris Agreement lays out an important vision. The world is now formally committed to action on climate change.

The New Zealand Government has hailed a historic deal on climate change, saying it is "the first truly global agreement on climate change".

The years-long quest for a universal pact to avert catastrophic climate change has neared the finish line with a draft agreement completed in Paris.

The world finally has a new accord on climate action, with the French presidency finally releasing the text in Paris.

Details of a landmark climate deal are set to be published in the next few hours and Kiwi businesses are hoping the agreement is ambitious.

Outgoing Climate Change Issues Minister says he'll be "gob-smacked" if the COP21 climate talks fail to deliver a new accord.

I have a proposal for Auckland to become a coal-free zone, writes David Hay. Holding climate change to two degrees or less means the world has to stop burning fossil fuels,

Paris is a significant milestone, yes, but it is not the sum total of the world's response. Every day more people are making changes to reduce their impact on the climate, writes Rachael Le Mesurier.