Publication Search
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December 2019The Ministry for the Environment commissioned NZIER to interpret and provide commentary on the Concept Consulting report, High level review of approaches for estimating a standard electricity allocation factor. Read more -
December 2019This report reviews the 2011 electricity allocation factor modelling approach and identifies several potential issues. Read more -
November 2019This information sheet provides high level advice to exporters of waste. Read more -
November 2019The Resource Management Review Panel has been established to undertake a comprehensive review of the Resource Management Act and other significant legislation comprising the resource management system. Read more -
November 2019This report reviews groundwater models in New Zealand. Read more -
November 2019This report describes the development of a Hydrogeological-Unit Map for New Zealand, which provides a classification of geological units in terms of their importance for groundwater flow and storage in an ArcGIS seamless digital map. Read more -
November 2019This report presents the approach and results of groundwater use in New Zealand. Read more -
November 2019This report describes national data sets related to groundwater flux estimation, including the methodologies to undertake this work and resultant digital data sets. Read more -
November 2019This report describes an update of New Zealand's depth to hydrogeological basement map, including the methodology used to undertake this work and the resultant digital data sets. Read more -
Step-by-step guide to rehousing a policy statement and or plan under the National Planning StandardsNovember 2019This guidance provides a step-by-step guide to ‘rehousing’ a policy statement and/or plan to be compliant with the National Planning Standards. Read more -
November 2019The proposed National Policy Statement for Indigenous Biodiversity (NPSIB) sets out the objectives and policies to identify, protect, manage and restore indigenous biodiversity under the Resource Management Act 1991 (RMA). Read more -
November 2019This report prepared by 4Sight Consulting and Market Economics is intended to test the proposed National Policy Statement for Indigenous Biodiversity (NPSIB) before public consultation and help inform stakeholders on the likely impacts, benefits and costs of the NPSIB. Read more -
November 2019The first set of national planning standards (with minor changes incorporated) provide national consistency for Resource Management Act 1991 (RMA) plans and policy statements. Read more -
November 2019This is a summary of the discussion document for the proposed National Policy Statement for Indigenous Biodiversity. 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 -
November 2019The Government is proposing to increase the landfill levy and apply it to more types of waste. Read more -
November 2019The Government is proposing to increase the landfill levy and apply it to more types of waste. Read more -
November 2019This consultation document provides information about the proposed new National Policy Statement for Indigenous Biodiversity. Read more -
November 2019This report by Honorary Professor Peter Skelton concerns the management and allocation of freshwater in the Otago region. It contains recommendations for the Minister for the Environment on improving freshwater management under the Resource Management Act 1991. 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 -
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 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 guide supports agencies to meet the Climate Implications of Policy Assessment requirement. Read more -
October 2019This report updates indicators for non-indigenous species with new data compiled since 2016. Read more -
October 2019This report updates previously published data (2015) on coastal sea-surface temperature from 11 sites around New Zealand. 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 -
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 -
October 2019This report provides new coastal chlorophyll-a and sea-surface temperature analyses within New Zealand’s territorial waters. Read more -
October 2019Our annual report 2018/19 provides information on how we’ve performed during 2018/19. Read more -
October 2019A six-page summary of our report, Our marine environment 2019, examining the most pressing issues in our oceans, seas, harbours, and coastlines. 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 -
October 2019Our marine environment 2019 examines the most pressing issues in our oceans, seas, harbours, and coastlines. Read more -
October 2019This document provides a summary of the submissions that were made on the proposals presented in the Action on Agriculural Emissions discussion document. Read more -
October 2019The discussion document sets out proposals for a mandatory (comply-or-explain) principles-based, climate-related financial disclosures regime. 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 -
September 2019This report describes the final stage of a multi-year research programme to develop thresholds for in-stream suspended and deposited sediment. Read more -
September 2019This report describes hydrological modelling that estimates the suspended sediment load reductions required to meet proposed suspended sediment attribute bottom lines. Read more -
September 2019This report provides a cost-benefit assessment of potential interventions to meet proposed suspended sediment attribute bottom lines. Read more -
September 2019This literature review assesses the primary sources of variability in sediment generation in an urban environment and the impact of urban development on sediment discharges in the short and long term. 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 -
September 2019This report analyses water quality data to assess the effect of urban development on in-stream indicators of suspended fine sediment, primarily turbidity and total suspsended sediment. Read more -
September 2019This report describes modelling of several urban development scenarios and their variable effect on sediment yield during construction. Read more -
September 2019This report describes remote sensing imagery analysis that identifies areas of winter forage cropping and evaluates devegetation that results from winter grazing. 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 -
September 2019This report provides a review of alternative, and potentially complementary, frameworks for the integrated assessment of the economic, environmental, and socio-cultural effects of environmental management. Read more -
September 2019This guide provides good practice guidelines on what a voluntary emissions offset is, the requirements of what constitutes a voluntary offset and examples of how voluntary emissions offsetting can be applied in the New Zealand context. Read more -
September 2019This report sets out an economic analysis of modelled assessments of four potential options for managing the effects of farming on freshwater. Read more -
September 2019This report sets out the results of a modelling exercise that assessed the potential economic impacts of meeting a range of contaminant loads and attributes states for nitrogen, phosphorus, and sediment in the Ruamahanga catchment in Wairarapa. 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