The energy industry says a direct intervention plan to support the country's transition to net zero carbon by 2050 would push energy costs up significantly.
"Unsustainable water use, pollution and unchecked global warming are draining humanity's lifeblood," United Nations Secretary General Antonio Guterres said.
Both said significant progress had been made on climate change under the current government.
This is likely the last warning that IPCC scientists will be able to make about the 1.5 threshold because their next set of reports may well come after Earth has either breached the mark or is locked into exceeding it.
Co-leaders James Shaw and Marama Davidson also says its time to "finally shake off the shackles of visionless government".
Co-leader James Shaw said the 2023 election would be a climate election.
The plant would act as a gigantic hydro power storage plant, representing a huge step in transitioning away from fossil fuels.
Climate change fuelled the impacts of Cyclone Gabrielle in Hawke's Bay and Tairāwhiti last month.
The researchers say the data confirms that both the frequency and intensity of rainfall and droughts are increasing due to burning fossil fuels and other human activity.
It follows a green policy purge yesterday.
The results follow the Government scrapping a suite of climate change initiatives yesterday.
The iceberg is the size of Greater London, measuring in at 1550sq kilometres.
Eight programmes have been scrapped or deferred as part of Chris Hipkins' focus on "bread and butter" issues.
Speaking on Q+A, the Prime Minister said he didn't have official advice to back this view. His own ministers said it would lead to a "significant" emissions increase.
It comes as a turning point for vast stretches of the planet where conservation has previously been hampered by a confusing patchwork of laws.
The climate is changing. Our defences are failing. And in some cases, they’re making things worse.
It comes as the Government considers whether vulnerable homeowners in West Auckland could get bailouts.
Locals are tired of dealing with forestry waste when there's a major weather event and they want things to change.
He told Q+A with Jack Tame that despite being disappointed with overall progress, he intended to continue in the job.
David Seymour said the party's scepticism on climate science is in the past.