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April 2019New Zealand’s Greenhouse Gas Inventory is the official annual report of all anthropogenic (human induced) emissions and removals of greenhouse gases in New Zealand. Read more -
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 -
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 -
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 -
November 2019This report reviews groundwater models in New Zealand. 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 -
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 -
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 -
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 -
August 2019This infographic shows our pathway to a low-emissions future, highlighting work underway and setting out our goals to 2050. 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 -
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 -
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 -
New Zealand's fourth biennial report under the United Nations Framework Convention on Climate ChangeDecember 2019This is New Zealand's fourth biennial report and presents New Zealand’s progress towards our international climate change commitments. Read more -
April 2019This report summarises submissions made on improvements to the New Zealand Emissions Trading Scheme. 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 -
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 -
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 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 -
May 2019This report analyses environmental conditions that cause the growth of periphyton in streams and rivers. 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 2019This Example GHG Report is part of a suite of eight documents that comprise the 2019 Measuring Emissions: A Guide for Organisations. It shows what a finished greenhouse gas inventory might look like. Read more -
December 2019This is New Zealand's Fourth Biennial Report snapshot for 2019, published alongside the full detailed report. 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 -
September 2019This data report provides an annual data picture of brassica grown in New Zealand. Read more -
May 2019This report provides information to help interpret trends in water quality of New Zealand’s lakes and rivers. 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 presents and tests a macroinvertebrate metric for New Zealand streams and rivers that is sensitive to changes in flow. 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 -
May 2019The Climate Change Response (Zero Carbon) Amendment Bill sets the framework for New Zealand’s transition to a low emissions and climate resilient economy. Read more -
July 2019This factsheet is one of 12 factsheets produced for the Environment Committee’s 2019/20 Estimates examination of Vote Environment. It is about the Ministry's climate change reporting work programme. Read more -
May 2019This report considers options for New Zealand to manage the effects of fluctuations in recycling material commodity prices on our resource recovery sector. Read more -
April 2019This guide outlines the process of gathering information to make decisions about investigating, managing and remediating sites in New Zealand contaminated with PFAS. 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 -
May 2019This factsheet has information for businesses on the on the Waste Minimisation (Plastic Shopping Bags) Regulations 2018 which take effect in New Zealand on 1 July 2019. Read more -
May 2019This report commissioned by the National Resource Recovery Taskforce analyses the resource recovery sector in New Zealand and the impacts on recycling following fluctuations in recycling material commodity prices as markets changed. Read more