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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 -
January 2008This report, commissioned by the Upper North Island Grid Upgrade Proposal Board of Inquiry includes key issues of the proposal, an overview of the notices of requirement and resource consent applications lodged, and an analysis of information provided by Transpower. Read more -
March 2009This report summarises changes in fish communities in New Zealand rivers, including changes in relation to different land uses. Read more -
June 2008In late 2007 the Ministry contracted a sector expert to provide a summary of the range of risks, costs, benefits and advantages from applying emissions trading to emissions of hydrofluorocarbons (HFCs). The report considers several possible places on the HFC supply and emission chain. Read more -
May 2015Landcare Research was commissioned to undertake macroeconomic modelling on the economic cost of New Zealand’s Intended Nationally Determined Contribution. This report presents the findings of that analysis. 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 -
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 -
February 2017This report is a strategic assessment of New Zealand’s freshwaters for recreational use from a human health perspective. It outlines the methods used to produce spatial predictions of E. coli and cynobacterial biovolume at unmonitored locations. Read more -
April 2008This report draws together the results of general equilibrium modelling undertaken for the Emissions Trading Group since October 2007, previously described in a number of separate papers. Read more -
December 2007Briefing for the Climate Change Leadership Forum. Prepared by the Emissions Trading Group. 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 -
October 2005This report is an analysis of the economic impacts of climate change projections in New Zealand. 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 -
October 2007This paper presents a general equilibrium analysis of possible policies that would meet New Zealand’s emissions obligations, under the Kyoto first commitment period 2008-12 (CP1) and under some plausible international agreement in 2025. Read more -
November 2013This technical report provides evidence and advice used in setting the E. Coli attribute bands for secondary contact recreation in rivers and lakes. 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 -
December 2007Briefing for the Climate Change Leadership Forum. Prepared by the Emissions Trading Group. Read more -
September 2007This paper sets out a prioritised Ministry work programme to help manage contaminated land. 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 -
February 2021This report provides emission factors for use with grassland with woody biomass (GWB) within New Zealand’s greenhouse gas inventory. Read more -
January 2003As part of an ongoing contribution to New Zealand’s pre-ratification assessment of the Kyoto Protocol, ABARE was commissioned by the New Zealand Department of the Prime Minister and Cabinet to conduct policy analysis for a range of proposals. Read more -
November 2019This report presents the approach and results of groundwater use in New Zealand. 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 -
July 2009This report summarises changes in nuisance periphyton (algal) growth at National River Water Quality Network sites between 1990 and 2006. Read more -
April 2008The scoping report identifies potential environmental effects of the New Zealand Emissions Trading Scheme (NZ ETS) and closely related measures, potential response measures, and terms of reference for further work. Read more -
May 2019This report analyses environmental conditions that cause the growth of periphyton in streams and rivers. Read more -
June 2010This report takes a detailed look at New Zealand's trends towards 'total emissions' and the two main contributing factors that fluctuate these trends from year-to-year. 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 -
April 2015One of two reports that assessed the options and implications of using the Macroinvertebrate Community Index (MCI) as an attribute in the National Policy Statement for Freshwater Management. It looked at identifying potential threshold values to define numeric attribute states for MCI. Read more -
December 2013An investigation into the feasibility of using freshwater fish predictive models in national state of the environment indicators. 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 -
March 2021This report estimates the net emissions and removals from woody vegetation and drained organic soils occurring on sheep and beef farmland in New Zealand. Read more -
April 2014This report by Indufor Asia-Pacific describes the methodology used to complete deforestation mapping in New Zealand for the calendar years 2008 to 2012. It includes regional results and national statistics for the area of land deforested, harvested, or awaiting a land-use decision. Read more -
July 2020This guide supports agencies to meet the Climate Implications of Policy Assessment requirement. Read more -
July 2001This report describes the result of an initial investigation into the impact of the introduction of a tradeable emissions permit regime for greenhouse gases. Read more -
February 2016This technical note sets out the results of macroeconomic modelling, by the New Zealand Institute of Economic Research, on the impacts of removing the New Zealand Emissions Trading Scheme one-for-two transitional measure at various carbon prices. 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 -
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 modelling New Zealand’s lake water quality. Read more -
May 2019This report develops a model predicting the reference state for stream macroinvertebrates across New Zealand. Read more -
May 2020A literature review of studies that jointly considered climate and freshwater policy in New Zealand. Read more -
September 2019This data report provides an annual data picture of brassica grown in New Zealand. Read more -
November 2001A series of reports on the effects of New Zealand's climate change policies on the forestry sector. Read more -
July 2004This report provides recommendations on how to better understand the economic impacts in New Zealand of climate change-related extreme events. The report focuses on New Zealand flood events, and presents a framework in which such events may be assessed in terms of economic costs. Read more -
June 2010The report assesses how well Integrated catchment management is working in New Zealand for managing freshwater quality. Read more -
May 2019This report provides information to help interpret trends in water quality of New Zealand’s lakes and rivers. Read more -
May 2005This report describe the likely changes in New Zealand drought risk over the 21st century, under climate change scenarios. Read more