Publication Search
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May 2019This report presents and tests a macroinvertebrate metric for New Zealand streams and rivers that is sensitive to changes in flow. Read more -
May 2019This report reviews how mechanistic (process-based) models simulate periphyton biomass using algorithms describing known growth and loss processes based on nutrients, light, temperature, grazing, and physical factors. Read more -
May 2019This report provides information on the susceptibility to eutrophication of coastal water bodies to nutrient loads from fresh water. Read more -
May 2019This report provides information to help interpret trends in water quality of New Zealand’s lakes and rivers. Read more -
May 2019This report summarises a workshop held to gather feedback on the ‘Interim New Zealand Guidelines for Cyanobacteria in Recreational Fresh Waters’. Read more -
May 2019This report examines whether measures of the macroinvertebrate community can provide information on the health of the trout populations that feed on them, based on existing data. Read more -
May 2019This report by NZIER is the second stage of its Computable General Equilibrium (CGE) modelling of the economic impacts of meeting different 2050 emissions targets. Read more -
May 2019This document is a peer review of NZIER's report Economic impact of meeting 2050 emissions targets: Stage 2 modelling by Dr Niven Winchester. Read more -
May 2019The Productivity Commission and the Ministry for the Environment contracted a consortium of organisations (‘CMV’) with experience in modelling and the economics of climate change mitigation to undertake modelling of New Zealand’s transition to a low-emissions economy. The modelling examines pathways from the present to the two 2050 emissions reduction targets. Read more -
May 2019This report recommends river habitat modification indicators that can be used for national environmental reporting under the Environmental Reporting Act. Read more -
May 2019This report recommends river biodiversity and ecosystem process impact indicators that can be used for national environmental reporting under the Environmental Reporting Act. Read more -
May 2019We are consulting with parties affected by proposed technical updates to New Zealand Emissions Trading Scheme (NZ ETS) regulations. Read more -
May 2019This report gives a high-level overview of the ‘social good’ benefits associated with electrifying process heat and reducing coal use. Read more -
May 2019This report outlines recommended changes to the ‘Interim New Zealand Guidelines for Cyanobacteria in Recreational Fresh Waters’. Read more -
April 2019This report summarises analysis methods and outcomes for modelling New Zealand’s lake water quality. Read more -
April 2019This report summarises analysis methods and outcomes for state and trends across New Zealand’s lake water quality monitoring network. Read more -
April 2019This report summarises analysis methods and outcomes for modelling New Zealand’s river water quality. Read more -
April 2019This report summarises analysis methods and outcomes for state and trends across New Zealand’s river water quality monitoring network. Read more -
April 2019This report summaries the published literature on land-use impacts on New Zealand's freshwater and coastal environments. Read more -
April 2019This report summarises submissions made on improvements to the New Zealand Emissions Trading Scheme. Read more -
April 2019This report summarises analysis methods and outcomes for modelling nitrate-nitrogen leaching from livestock in New Zealand, from 1990 to 2017. Read more -
December 2018Ministry for the Environment, in partnership with Bay of Plenty Regional Council, commissioned Perrin Ag Consultants Ltd and Manaaki Whenua Landcare Research to develop mitigation bundles for use in evaluating the cost of improving water quality in the Kaituna-Pongakawa-Waitahanui and Rangitāiki Water Management Areas. Read more -
December 2018Ministry for the Environment, in partnership with Bay of Plenty Regional Council, commissioned Perrin Ag Consultants Ltd and Manaaki Whenua Landcare Research to assess the farm/orchard-gate economic impact of applying a range of mitigation practices to reduce losses of nitrogen, phosphorus, E. coli and sediment. Read more -
December 2018This report summarises the findings of the Ministry’s review of the National Environmental Standard for Source of Human Drinking Water. Read more -
December 2018Ministry for the Environment, in partnership with Bay of Plenty Regional Council, commissioned a literature review to get an accessible summary of relevant research carried out in New Zealand on methods to manage sediment and their economic assessment. Read more -
October 2018This document provides a summary of the submissions received on Our Climate Your Say: Consultation on the Zero Carbon Bill document and at the consultation events. Read more -
September 2018This report, prepared for the Ministry for the Environment by NIWA, examines the potential impacts of climate change on hydrological conditions at 20 river mouths around the country. Read more -
September 2018This report has two sections: Section 1, facilitated by Te Ātiawa Manawhenua Ki Te Tau Ihu Trust, describes the history and cultural values associated with the Waitohi and Waikawa streams. Section 2, an interim report by the Marlborough District Council, addresses Water Quality in the Waitohi and Waikawa catchments. This work will be used to inform future work that both parties can undertake in these catchments. Read more -
September 2018The Ministry for the Environment commissioned this research to identify perceived barriers to the adoption of any of the three mechanisms proposed in the draft plan change for the Tutaekuri, Ahuriri, Ngaruroro and Karamu catchments (known as ‘TANK’). Read more -
September 2018This report offers preliminary guidance to water management groups(WMGs), regional councils and other interested parties on how WMGs can be structured and what regional council plans should contain to improve the likelihood that groups will achieve the freshwater outcomes desired by their communities. Read more -
August 2018This report investigates the consumption of hydrofluorocarbons (HFCs) in New Zealand and projects demand for HFCs to 2030. Read more -
August 2018The Government is proposing improvements to the New Zealand Emissions Trading Scheme (NZ ETS) and is seeking feedback. This consultation document sets out proposals primarily focused on improving the framework of the NZ ETS so that it is a credible and well-functioning scheme that helps us meet our climate change targets. Read more -
August 2018Trend analyses performed on many sites are regularly aggregated by water quality variable and summarised in tabular, graphical or map format as part of environmental reporting. Read more -
August 2018This guide explains how the New Zealand Emissions Trading Scheme (NZ ETS) is designed and how it operates (a snapshot as at August 2018). Read more -
June 2018The Zero Carbon Bill is an opportunity for New Zealand to decide how it delivers its part in the global effort while encouraging action by others. The Bill puts a new target in legislation that gives us certainty about our long-term goals. It creates the institutions to help us get there and to hold us to account. It can also put in place the plans we need to respond to the growing impacts of climate change. Read more -
June 2018 -
June 2018This report synthesises the series of economic analyses: modelling and other supporting economic studies, and their different strengths and weaknesses, to assess the economic impacts of target options and the wider impacts of stronger climate action. Read more -
Emissions pricing impact on innovation and competitiveness: A review of the international literatureJune 2018This report reviews the international literature regarding the impact of emissions pricing on the innovation and competitiveness of industries. Read more -
June 2018The transition to a low-emissions economy will bring many costs and benefits. This report analyses the available evidence on the co-benefits (eg, health, congestion) of possible policies to reduce greenhouse gas emissions in New Zealand. Read more -
June 2018The bottom-up modelling approach taken in this report sets out the pathways for the transition and how decision-making impacts economic activity and greenhouse gas emissions under uncertain future states of the world. Read more -
June 2018In this report, the New Zealand Institute of Economic Research (NZIER) uses a dynamic Computable General Equilibrium (CGE) model to explore the economic impacts of transitioning to targets and a lower-emissions future, and examines how the economy changes in response to the imposition of various targets. Read more -
June 2018This report by Sense Partners examines data and analyses on the ability of New Zealand businesses and sectors to innovate and compete in a world of uneven emissions prices. Read more -
May 2018This report outlines the establishment of reference conditions and trigger values. Reference conditions are defined as the chemical, physical or biological conditions that can be expected in streams and rivers with minimal or no anthropogenic influence. Read more -
May 2018This consultation document sought views on proposed technical updates to three regulations under the Climate Change Response Act 2002 as it applies to the New Zealand Emissions Trading Scheme. Read more -
May 2018This report is the second and final report prepared by the Climate Change Adaptation Technical Working Group. It provides recommendations for the actions New Zealand needs to take to build resilience to the effects of climate change while growing the economy sustainably. Read more -
May 2018Phormidium is a potentially toxic, mat-forming benthic cyanobacterium found in an increasing number of New Zealand rivers. This report outlines a study which assessed Phormidium toxin levels in the Cardrona (Otago), Mataura (Southland) and Hutt (Wellington) Rivers in 2017. Read more -
May 2018The Managing Upstream project aims to help inform management decisions when establishing freshwater objectives under the Freshwater NPS and increase knowledge on the state of different estuary types in New Zealand. Read more -
May 2018The Managing Upstream project aims to help inform management decisions when establishing freshwater objectives under the Freshwater NPS and increase knowledge on the state of different estuary types in New Zealand. Read more -
May 2018Phormidium is a potentially toxic, mat-forming benthic cyanobacterium found in an increasing number of New Zealand rivers. This report outlines a study which investigated drivers of Phormidium blooms in New Zealand rivers to predict risk of blooms. Read more -
May 2018This report provides an environmental classification system for a potential deposited sediment indicator in the National Objectives Framework. The system classifies streams according to their modelled reference state. This report is an interim deliverable for an ongoing research programme that builds on and refines its findings and will conclude in June 2018. Read more