New Zealand has ratified the Paris Agreement, becoming one of the countries to do so before the threshold at which the historic agreement will come into force.

You know Dasher and Dancer, Prancer and Vixen, Comet and Cupid . . . ? Their cousins may all be dead soon.

COMMENT: Ex-Minister suggests new way to tackle emissions.

Federated Farmers president William Rolleston has stepped in as acting president of the World Farmers' Organisation.

Global warming could rapidly threaten grasses including staple foods such as wheat and rice that provide half of all the calories consumed by humans, say scientists.

Corporate control of agriculture, new viruses and climate change have been singled out among a long list of big threats to pollinators in a new horizon-scanning study co-authored by a Kiwi scientist.

A leading climate scientist has welcomed a new 20-year Government "roadmap" that singles out climate change as an environmental research priority for New Zealand.

Warmer winds carry fresh challenges to the major industries of regional New Zealand.

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.

The latest global report on climate change is "bad news" for New Zealand, which has far fewer mitigation policies than other advanced economies, the Green Party say.

Every day, millions of tons of inadequately treated sewage, industrial and agricultural waste enters the world's waterways, writes Sam Judd.

A recent discovery that agricultural practices help form clouds could change the way we see New Zealand's environmental performance.

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

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

That wonderful quote in our English history should be changed in New Zealand to: 'Water, water everywhere and not a drop is saved!'

The drought is a timely reminder of how much the New Zealand economy depends on rainfall, writes Brian Fallow.

Zoe Hilton's love of the sea led her to Bluff's delicacy and international recognition.

Prime Minister John Key has defended New Zealand's emissions trading scheme amid criticism it is soft compared with a new Australian scheme.

NZ farmers are unlikely to be brought into the emissions trading scheme in 2015 unless scientific advances are made in reducing animal emissions and our trading partners make giant strides in pricing carbon.