Publication Search
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April 2019This snapshot of New Zealand’s greenhouse gas emissions summarises New Zealand’s Greenhouse Gas Inventory and how the inventory data are used to monitor progress towards New Zealand’s emissions reduction targets. Read more -
January 2020This report presents the results of our work to identify a range of possible options to reduce net greenhouse gas emissions in New Zealand, as well as the potential scale and estimated costs of each option. Read more -
April 2019This report provides a national inventory of polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran emissions to air, land and water from known sources for 2016. Read more -
July 2019This discussion document outlines the Government’s proposals to address greenhouse gas emissions from agriculture. Tackling these emissions is vital to enable us to transition to a low-emissions and climate-resilient country. Read more -
July 2019This factsheet about the New Zealand Emissions Trading Scheme (NZ ETS) is one of 12 factsheets produced for the Environment Committee’s 2019/20 Estimates examination of Vote Environment. Read more -
October 2019This report updates previously published data (2015) on coastal sea-surface temperature from 11 sites around New Zealand. Read more -
May 2019This report refines and updates 2011 modelling on suspended sediment loads across New Zealand with new and longer calibration datasets and updated predictors. Read more -
August 2020This factsheet gives an overview of the different types of waste to energy (WtE) technologies and aspects of the New Zealand context that may be relevant when considering WtE proposals. Read more -
April 2019This report updates the state and trends of water quality of coastal and estuarine waters for physico-chemical (eg, pH), optical (eg clarity), nutrients (eg, nitrates), and microbiological parameters (eg, enterococci). Read more -
December 2020This report surveyed international frameworks, identified important lessons for outcome-based environmental management, and helps clarify what setting environmental limits and targets will require. Read more -
August 2019This infographic shows our pathway to a low-emissions future, highlighting work underway and setting out our goals to 2050. Read more -
August 2020This snapshot summarises the findings of New Zealand’s first National Climate Change Risk Assessment. It gives a national picture of the risks New Zealand faces from climate change. Read more -
August 2020This 2007 report evaluated the effects of air pollution in 67 urban areas across New Zealand on the 2001 population and ambient monitoring data. Read more -
September 2019This report from ESR describes the methodology and findings of an assessment of changes in levels of compliance with the Drinking-water Standards for New Zealand (DWSNZ) from 2005 to July 2017. Read more -
May 2019This report provides information on the susceptibility to eutrophication of coastal water bodies to nutrient loads from fresh water. Read more -
December 2020This guide describes how auctions operate for the NZ ETS. The first auction is expected to be held in March 2021. 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 -
August 2020This report presents the findings of New Zealand’s first National Climate Change Risk Assessment. It gives a national picture of the risks New Zealand faces from climate change to help prioritise action. Read more -
August 2020This technical report provides further detail on the risk assessment findings of New Zealand's first national climate change risk assessment. It includes profiles of all the risks, opportunities and knowledge gaps identified. Read more -
October 2019This report updates indices for coastal and ocean extreme waves previously developed to quantify the occurrence of extreme wave events in New Zealand on an annual basis. Read more -
August 2020This report documents the methodology used in the National Climate Change Risk Assessment and the associated engagement. It supports organisations to carry out their own national, local and regional risk assessments. Read more -
October 2019This report provides new coastal chlorophyll-a and sea-surface temperature analyses within New Zealand’s territorial waters. Read more -
August 2020This report describes a prototype for a New Zealand River Ecosystem Health Scorecard, conceived as a simple, easily interpretable and holistic communication tool for the state of the biophysical condition of rivers and streams in New Zealand. Read more -
April 2019This report summaries the published literature on land-use impacts on New Zealand's freshwater and coastal environments. Read more -
December 2019This document outlines the Government’s proposals for the provisional emissions budget and the accompanying NZ ETS settings. Read more -
August 2020This report summarises the updated (2012) Health and Air Pollution in New Zealand (HAPINZ) study which evaluates the effects of air pollution on human health across New Zealand and the resulting social costs. Read more -
August 2020This report provides the technical information for the updated Health and Air Pollution in New Zealand (HAPINZ) study which evaluates the effects of air pollution on human health across New Zealand and the resulting social costs. Read more -
April 2019This report summarises submissions made on improvements to the New Zealand Emissions Trading Scheme. Read more -
December 2020This report translates the planetary boundaries framework to show New Zealand’s global environmental connections and quantifies where our country sits in terms of operating within environmentally safe boundaries. Read more -
June 2020This document provides a summary of the 133 written submissions received on the proposals outlined in the consultation document Reforming the New Zealand Emissions Trading Scheme: Proposed settings. Read more -
October 2020This report assesses the suitability of using New Zealand Rural Fire Authority’s Fire Danger Rating System as an indicator on wildfire risk for the Ministry for the Environment and Stats NZ’s environmental reporting. Read more -
September 2019This report reviews New Zealand literature on the effects of environmental degradation of freshwater ecosystems on social, cultural, environmental, and economic outcomes in New Zealand. Read more -
November 2019This discussion document outlines the Government’s proposals for the rules for auctioning in the New Zealand Emissions Trading Scheme to align the supply of NZ ETS units with New Zealand's emissions reduction targets. Read more -
May 2019This report outlines recommended changes to the ‘Interim New Zealand Guidelines for Cyanobacteria in Recreational Fresh Waters’. Read more -
May 2019This report analyses seasonal patterns in river and lake water quality across New Zealand, using data from 2013–2017. Read more -
June 2020This document provides a summary of the 47 written submissions received on the proposals outlined in Reforming the New Zealand Emissions Trading Scheme: rules for auctioning. Read more -
October 2019This report updates previously published statistics on mean sea-level series and trends at Auckland, Wellington, Lyttelton, Dunedin, New Plymouth and Moturiki (Mount Maunganui) to the end of 2018. Read more -
November 2019This paper provides a background on the electricity allocation factor (EAF), its initial modelling techniques and outlines the need for a review. Read more -
December 2019This guide provides information for people who import, manufacture, or sell products covered by New Zealand’s Water Efficiency Labelling Scheme (WELS). 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 -
February 2020This NIWA report presents a modelled baseline of current concentrations of PM2.5 in ambient air and associated health impacts. 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 -
September 2019This framework provides the approach to be used in completing the National Climate Change Risk Assessment (NCCRA). It includes the framing and templates, along with guidance materials that will be used to assess climate change risks at a national level. Read more -
November 2019This report presents a modelled baseline of current concentrations of PM2.5 in ambient air and associated health impacts. 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 state and trends across New Zealand’s river water quality monitoring network. Read more -
May 2019This report analyses environmental conditions that cause the growth of periphyton in streams and rivers. Read more -
July 2020The Government intends to ratify the Minamata Convention on Mercury and is proposing to introduce a new set of regulations to do so. We are seeking your views on the Government’s proposals and the impacts of the proposed controls on New Zealand. Read more -
September 2019This draft NIWA report provides the first attempt to develop bottom-line thresholds for suspended and deposited sediment based on ecological responses for New Zealand rivers and streams. Read more -
May 2020This NIWA report summarises existing literature on the consequences of delaying reductions to nutrient inputs on rivers, estuaries and lakes. Read more