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April 2019This report summarises analysis methods and outcomes for modelling nitrate-nitrogen leaching from livestock in New Zealand, from 1990 to 2017. Read more -
May 2020This report presents research conducted by Lincoln University on the willingness to pay for the various attributes associated with New Zealand’s green premium. Read more -
January 2008This paper discusses a number of further issues and options relating to the treatment of pre-1990 forest in the New Zealand Emissions Trading Scheme. Read more -
May 2020This Castalia report estimates the administrative costs imposed under the Action for healthy waterways package for New Zealand’s 16 regional councils. Read more -
May 2019This report presents and tests a range of macroinvertebrate metrics for New Zealand streams and rivers that are sensitive to changes in sediment and periphyton. Read more -
October 2019This NIWA consultant report provides analysis of state and trends in a number of water quality variables in urban rivers and streams in New Zealand. Read more -
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 -
April 2001This checklist for the removal of petroleum underground storage tanks is taken from Contaminated Land Management Guidelines No. 1 – Reporting on Contaminated Sites in New Zealand (Revised 2011). 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 -
March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. Read more -
March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. It produces neurotoxins called anatoxins and ingestion of cyanobacteria mats has caused numerous dog deaths. Read more -
November 2001This paper outlines the background to two reports: ‘Economic outcomes of the Kyoto Protocol for New Zealand’ and ‘Assessment of the likely impacts on selected sectors of a domestic emissions trading regime’. Read more -
March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. Read more -
February 2017Sediment is an important contaminant in New Zealand freshwaters. This report presents the development of an analytical framework to empirically relate various key instream measures of sediment to catchment sediment loads. Read more -
January 2008This report provides detailed analysis and conclusions on the potential economic impacts on Māori from the New Zealand Emissions Trading Scheme. It outlines economic opportunities and costs in absolute and relative terms. 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 -
March 2008This report estimates the extent of dioxin contamination at sawmill sites in New Zealand where pentachlorophenol (known as PCP) was used as a timber treatment in sprays or dips until its withdrawal in 1988. Read more -
October 2011This checklist should be included as a cover sheet for all contaminated site investigations. The checklist is taken from the Contaminated Land Management Guidelines No.1 – Reporting on Contaminated Sites in New Zealand (Revised 2011). Read more -
November 2008The report was commissioned by the Ministry for the Environment for the SEIP TAG Electricity Issues Sub-group. The analysis involved modelling future electricity system performance in New Zealand assuming a range of CO2 prices Read more -
July 2009This report is the first time a national picture of water quality in dairying catchments has been published for New Zealand. The report draws together water quality and land-use information from 14 river catchments. Read more -
June 2016This report presents the findings of a review of continuous dissolved oxygen data in New Zealand including an assessment of observed dissolved oxygen concentrations in relation to the National Objectives Framework (point source) band thresholds. Read more -
May 2020This report presents the modelled results of the impact of the National Policy Statement for Freshwater Management (2017) and two variants of the Essential Freshwater package on New Zealand’s economy in 2030 and 2050. Read more -
May 2010This report is one of two prepared for the Ministry for the Environment by NIWA, which update national indicator data for river water quality in New Zealand and help provide the evidence base for policy and decision makers. Read more -
September 2009This report provides an update of results for indicators of groundwater quality in New Zealand. It summarises average water quality at almost 1000 monitoring sites over the period 1995-2008, as well as trends at the same sites within that period of time. 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 -
December 2009The Water Research Strategy sets out the issues for water management and guides investment in water research. It is intended to guide the science sector to deliver the information and tools required to enable world class management of water resources in New Zealand. Read more -
February 2016A technical note providing an expert opinion on the likely forestry sector response to various carbon prices which was commissioned by the Ministry for Primary Industries and undertaken by Professor Bruce Manley of the New Zealand School of Forestry at the University of Canterbury. Read more -
February 2002This report chronicles the development of the carbon monitoring system for indigenous forests, scrub and soils. 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 -
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 -
February 2017This report has been produced to test potential consequences of setting freshwater objectives for hydro scheme operations. Modelling was undertaken of a selection of various scenarios involving an increase in minimum flows in selected rivers to assess the impact of draft proposals to amend the NPS Freshwater Management on the New Zealand electricity system. Read more -
April 2020This modelling report from Energy Link provides a range of possible new values for the electricity allocation factor using different parameters, scenarios and modelling methodologies. Read more -
February 2021This report calculates national carbon stock and carbon stock change estimates (via yield tables) for pre-1990 and post-1989 planted forests. Read more -
May 2020This report summarises work to evaluate load reductions required to meet the new National Policy Statement for Freshwater Management's nutrient-related bottom lines. Read more -
April 2010This report informs the ‘environmental flows and water measuring’ and ‘water quality limits’ projects commissioned as part of the New Start for Fresh Water programme in 2009. Read more -
June 2012The Gap Analysis was one of four studies undertaken as part of the RMA Monitoring and Review Project. The gap analysis distilled key points from the three scoping studies to identify gaps and opportunities for designing and developing an integrated monitoring framework for the RMA. Read more -
September 2019As part of the Essential Freshwater programme, the Government is considering changes to nitrogen and phosphorus regulations. This study aimed to determine the impact of the proposed new nitrogen regulation. Read more -
December 2000The Stream Periphyton Monitoring Manual describes a standard set of methods for regional councils, consultants and researchers to collect and analyse data on periphyton for resource surveys, impact assessments/monitoring, state of environment reporting and research studies. Read more -
November 2010This report presents a summary of the regional council consent data for water takes between 2009–10. The information in the report has been used to update the freshwater demand environmental indicator. Read more -
October 2011A history of the Fruitgrowers’ Chemical Company (FCC) at Mapua and the clean up of the site. Read more -
November 2019This report by Concept Consulting compared input values used in the previous modelling of the EAF against reality. It found that if actual values had been used the EAF would be lower than its current level. Read more -
November 2019This report from Energy Link recommends a range of parameters and values for the proposed EAF modelling. Read more -
November 2019This report by Scientia Consulting estimates the actual EAF in the wholesale electricity market over 2016 and 2017 using actual and counterfactual (not NZ ETS costs) spot prices. Read more -
November 2017This material is incorporated by reference in the National Policy Statement for Freshwater Management 2020. Read more -
January 2010This report documents the tools being used to support Māori participation in freshwater management under the Resource Management Act 1991 and suggests areas that could be further investigated. Read more -
February 2002A further five ABARE scenarios were commissioned following the completion of the six-scenario ABARE report. Read more -
May 2019This report outlines the different potential approaches for characterising the pressure created by dams on the flow regime of rivers and streams. Read more -
April 2017This report outlines the development of a pressure-state-impact model to predict the effect of water abstractions on river flows, using Canterbury as a case study. Read more -
September 2019This report builds upon the findings of the Sediment attributes and urban development (report 1) literature review - see link in Related publications below. Read more