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The party is expected to announce policies in areas like climate change and biotechnology.
Here's what it means for you.
There will be another on Thursday if you missed last night's showing.
It's been ordered to pay over $100,000 after unlawfully discharging dairy effluent.
The Provincial Growth Fund will be used to develop new pest control methods.
Once a cat dies the owner will not be allowed another one - but many locals are opposed.
The Government has been criticised for ending the controversial policy.
They see it just as "irresponsible and morally wrong" as eating cows and pigs, study finds.
Otaki River has seen the amount of toxic algae covering it dramatically grow in the last two weeks.
Several researchers and environmentalists have criticised the process.
A major leak to a main supply pipe has led to widespread water restrictions.
How a small group of young campaigners pushed for the Zero Carbon Act to reach Parliament.
Insect numbers are collapsing - and we have "no hope in hell of surviving".
Four of the rare dolphins have been caught in trawling nets this summer.
Based on current trends, insects could be extinct within a century.
A woman had a terrible melt-down after she demanded a disposable cup.
Fishers, boaties and environmentalists are on one side, on the other are the farmers and growers.
Forest & Bird are calling for better protection of the vital ecosystems.
"New Zealanders are ready for regulation to stop the degradation of waterways."
The potential leader of a new 'blue-green' party says existing rules are tough enough - they just need to be enforced.
