A checklist has been developed to help councils consider climate change effects in a more strategic way during the development and review of statutory plans, policy statements and reports developed by councils, including those required under the RMA.
Statute/name of plan Duration and purpose |
Checklist for considering climate change effects in plans |
Statute: Local Government Act 2002 Name of plan: Long term plan Duration: 10 years, but reviewed every three years. Can be changed at the same time as an annual plan is prepared Purpose:
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Name of plan: Annual plan Duration: Annual Purpose: Support the Long Term Plan in integrated decision-making and coordination of the local authority resources; and provide an annual budget and funding impact statement for the local authority |
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Name of plan: Annual Report Duration: Annual Purpose: A report on the annual plan, measuring activities and expenditure against sustainable development. |
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Resource Management Act 1991 Name of plan: Regional Policy Statement Duration: 10 years, but can be reviewed or changed at any time Purpose: Achieve the sustainable and integrated management of natural and physical resources, by providing an overview of a region's resource management issues, policies and methods |
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Name of plan: Regional plans Duration: 10 years, but can be reviewed or changed at any time Purpose: Achieve the integrated management of natural and physical resources; managing and controlling land for soil erosion and natural hazards; managing and controlling water resources and beds of rivers and lakes; and managing and controlling the coastal marine area |
Depending on the plan ...
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Name of plan: District plans Duration: 10 years, but can be reviewed at any time Purpose: Integrated management of the effects of use, development and protection of a district 's natural and physical resources; and control of land in relation to natural hazards |
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Civil Defence Emergency Management Act 2002 Name of plan: Civil Defence Emergency Management Group Plan Duration: Five years, but can be reviewed sooner Purpose: Developing an integrated community-based response to the sustainable management of hazards |
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Plans under other legislation, and/or plans which have no specific statutory basis Name of plan: For example, Reserve Management Plans, Asset Management Plans, Catchment Management Plans, Landcare and Biosecurity Management Plans Duration: Usually no set times. Plans should state their review periods. Purpose: Plans should explain their purpose through stated objectives and policies. |
Depending on the plan ...
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RMA policy-making
Where climate change effects are expected to be significant (e.g. in areas where coastal erosion along a heavily developed foreshore is expected to exacerbate under a changing climate), a precautionary approach is appropriate, reflecting the direction set by the New Zealand Coastal Policy Statement (for example, see ss3.3 and 3.4).
While climate change may appear a gradual process the impacts of which are difficult to determine with accuracy, the development and use of land usually brings about long-term changes that are difficult to reverse once the effects of climate change manifest themselves. For example, an area may not be susceptible to the effects of climate change (e.g. sea level rise) for the next twenty years, but may subsequently become at risk after that time. If the effects are significant, this could create lock-in problems for future generations.
Land use planning decisions should integrate consideration of future climate, and cover a sufficiently long-term horizon, particularly given the permanency of structures and the expectations and values inherent with increased development. Both territorial and regional authorities can mitigate some of this risk by ensuring that there are robust land use policies and provisions within their plans, and that current policies and strategies are reconsidered as necessary.
The tools for managing natural hazards are well known and developed, and can be found in district and regional plans throughout the country.
- When plans or relevant part of plans are proposed to be reviewed, studies should be programmed to ensure the necessary data and supporting technical information is available for the policy analysis. For example, studies on how sea-level rise might affect local coastal inundation and erosion risks in highly developed areas may be necessary if the information-base is not sufficiently current or comprehensive to provide for robust analysis and policy development.
- In areas where the effects of climate change are expected to be significant, particularly those in which coastal and flooding hazards are expected to worsen, it is recommended that explicit policies be formulated and contained within the relevant regional and district plans - including the regional coastal plan.
- A review of significant resources within the local authority that may be affected by climate change may assist in understanding what are the likely resources to be affected, the extent to which impact is likely, what priority resources need protecting, and what avoidance or mitigation measures may be practicable. These may need to be taken into account in the preparation and review of Long Term Plans, Annual Plans, and asset management plans, for example.
- Community education about the expected effects of climate change is an important early element to any policy-making process particularly in the lead up to consultation where it is important that those consulted have adequate sound information upon which they can make informed decisions.
Several policies in the New Zealand Coastal Policy Statement address the effects of climate change.
- Policy 3(2) which refers to adopting the precautionary approach with regard to coastal areas subject to the effects of climate change
- Policy 4(c)(iii) which refers to the need to use an integrated approach to development or land management approaches for land subject to inundation
- Policy 10(2)(a) which refers to the need to consider the potential effects of climate change when dealing with coastal reclamations
- Policy 18(d) which refers to considering the likely impacts of climate change in relation to public access to open space adjoining the coast
- Policy 24(h) which refers to considering the of climate change when identifying areas of coastal hazards
- Policy 27(2)(b) which refers to considering the effects of climate change when protecting significant developments in the coast
Regional policy statements
Under the RMA, regional and district plans must be consistent with the relevant regional policy statement. Taking account of the effects of climate change will be an explicit consideration in the review of the first generation regional policy statements, which all have policies on natural hazards and groundwater resources.
- Where the effects of climate change are likely to be significant resource management issue, effective responses to addressing the effects of climate change and changing natural hazards may require a coordinated approach between regional and territorial local authorities. As an example, coordination is recommended to address coastal hazards and flooding risks, for which both authorities have a role to play.
- Cooperative regional-district partnerships can be promoted and expressed through regional policy statements, particularly in areas where climate change is expected to significantly impact on natural hazard risks.
Regional and district plans
All district plans have policies and provisions on natural hazards. In addition, regional coastal plans also address natural hazards, while flooding hazards and soil erosion are usually addressed in district plans, other regional plans, or both. The effects of climate change could be appropriately addressed largely by reviewing current policies, updating the information base to include information on expected climate change impacts, and reassessing the effectiveness of current methods to implement such policies.
Regulatory controls managing the development and use of land are a principal, but not exclusive, method for addressing the effects of climate change under RMA Plans. This is especially so in areas where existing development is under threat from, or potentially threatened by, exacerbated natural hazards. For example, such regulatory controls include building setbacks, development prohibitions, building floor level requirements, and limitations on land use activities. Where a coastal erosion risk or flood risk is expected to worsen as a result of climate change, regulatory methods may have even greater relevance to limit the exacerbation of risks through further development.
In addition, other commonly used non-regulatory methods include:
- Provision of reserves (for example, esplanade reserves) to act as buffers, or as substitute land uses in place of more vulnerable land uses;
- Guidelines and codes of practice (which may, for example, be used to promote appropriate design specifications for stormwater disposal systems);
- Community education and involvement (for example, dune care programmes to improve resilience to sea level rise, siting and designing buildings); and
- Covenants and consent notices on the title (for example, identifying "no build" areas, or vegetation retention requirements).
Other statutory instruments also need to be considered.
Strategic management planning initiatives are often an effective way of developing an integrated approach to addressing natural hazards. Management plans directly link with other council services and programmes outside the RMA that can be reviewed, updated and revised as progress requires and resources permit, without amending the RMA Plan. However, given that the process of developing strategic responses has to link with the Plan (which has its own formulation process), an iterative approach may be necessary.
RMA plan 'example provisions'
The RMA Plan example provisions have been prepared to illustrate how the effects of climate change relate to various resource management issues. They are based on a fictitious region/district, and are therefore general in nature. That being the case, while the examples can provide direction for those developing plan provisions, it is not advisable to 'cut and paste' the provisions into plans without modification for local circumstances.
No example rules have been proposed, although comment has been made. This is because responding to climate change will most likely influence how other rules (such as those relating to natural hazard management) work and where they apply, but they are not the 'driver' for the rule.
In some cases however, councils may wish to insert additional provisions into their plans after considering how to respond to the longer term effects of climate change. Such changes could include, for example:
- Adding additional or new setbacks in areas expected to be prone to erosion or flooding;
- Introducing or extending areas that are subject to minimum floor area requirements;
- Introducing or extending the areas where geotechnical reports are required before development takes place (such as on erosion prone or unstable hillsides).
Regional policy statement – Natural hazards chapter
Coastal erosion
Issue
Climate change effects such as sea level rise and increased frequency and magnitude of storm surges will potentially alter and/or increase the risks from coastal erosion.
Issue explanation
Climate change is expected to result in rising sea levels and an increase in both the frequency and intensity of storm events. Both are expected to increase the impacts of storm surge and wave run-up, which will directly affect the location, rate and magnitude of coastal erosion. Areas currently experiencing coastal erosion may see an increase in erosion, and erosion may start to occur at locations where coastal erosion is currently not significant.
Objective
To ensure the effects of climate change are taken into account in avoiding or mitigating the adverse effects of coastal erosion on people and natural and physical resources.
Policy
Where new subdivision, use and development is proposed in the coastal environment, the occurrence and magnitude of coastal erosion must be assessed, including any potential changes to existing risk as a result of climate change.
Method
Identify areas susceptible to future coastal erosion, including via modeling of expected climate change effects.
Flooding
Issue
Climate change is predicted to increase the frequency and intensity of heavy rainfall events, leading to changes in flood risk.
Issue explanation
Increasing air temperatures will bring a corresponding increase in the frequency and intensity of heavy rainfall events, even in areas expected to experience less average rainfall in future. This change will place pressure on existing stormwater systems in urban areas, and natural drainage systems in rural environments. Areas currently prone to flooding may see an increase in the frequency and scale of future flooding events, and new areas currently not affected by flooding may become susceptible.
Objective
To ensure the effects of climate change are taken into account in avoiding or mitigating the adverse effects of inundation on people and natural and physical resources.
Policy
Where new subdivision, use and development is proposed in areas susceptible to inundation, the occurrence and magnitude of inundation must be assessed, including any potential changes to existing risk as a result of climate change.
Method
Identify areas susceptible to future inundation, including via modeling of expected climate change effects.
Regional plan – Freshwater chapter
Issue
The effects of climate change have the potential to change the quantity and quality of surface water, with increased variability in river flows likely.
Issue explanation
Changes in the intensity and frequency of extreme weather events are one of the expected effects of climate change. These events include increased incidence of drought in Eastern areas, and increased floods in all areas after major heavy rainfall events. Either could result in significant changes in the amount of water flowing in a number of rivers and streams throughout the region. Abstractions, damming and diversions of freshwater must consider this increased fluctuation in flows.
Objective
To manage the effects of climate change resulting in increasing variability of flows in rivers and streams by controlling the taking, use, damming and diversions of fresh surface water.
Policies
Manage the abstraction of fresh surface water based on hydrological modelling/predictions including the effects of climate change.
Limit the abstraction of fresh surface water during extreme low flows.
Methods
Regulatory:
- Rules setting minimum flow levels in streams and rivers throughout the region.
- Assessment criteria for determining resource consents for water abstractions from low flowing rivers and streams.
- Conditions on resource consents in water abstraction water permits.
Non-regulatory:
- Provision of information material to inform the public about the minimum flows in rivers and streams, and the hydrological analysis including climate change predictions used to calculate the minimum flows.
- Undertake further hydrological research into the effects of climate change on fresh water resources, in particular minimum flows and extreme flood events.
- Encourage water efficiency measures in the community
- Commission regional economic study into drought-tolerant agricultural and horticultural practices.
Rules
Existing rules associated with the abstraction of fresh surface water should be audited to ensure climate change predictions have been incorporated into the minimum flow calculations.
District plan - Natural hazards chapter
Issue
The effects of climate change have the potential to change and/or worsen the effects of existing natural hazards on people and natural and physical resources in the District.
Issue Explanation
Based on current predictions, climate change has the potential to affect the scale and intensity of existing natural hazards in the District, in particular, the natural hazards of coastal erosion, coastal inundation, storm surges, flooding and droughts. In managing land use and subdivision in areas prone to natural hazards, the Resource Management Act requires the effects of climate change to be considered.
Objective
To minimise the effects of climate change in areas subject to natural hazards, by managing activities and development within areas at risk from each hazard.
Policies
To identify natural hazard prone areas in the District incorporating the current modelling/predictions of expected climate change impacts.
Subdivision and development in areas prone to natural hazards should be avoided, or permitted only where it is demonstrated that the risks from the hazard(s) can be effectively mitigated.
Methods
Regulatory:
- Rules and the resource consent process to manage subdivision and development in areas subject to significant risk from natural hazards.
- Assessment criteria for determining resource consents in hazard prone areas.
- Conditions on resource consents in hazard prone areas to avoid or mitigate the risks of natural hazards.
Non-regulatory:
- Provision of information on the location and characteristics of natural hazards (climate change adjusted) through Land Information Memorandums (LIMs).
- Undertake research into natural hazards, including modelling the effects of climate change on areas susceptible to natural hazards.
- Protection works to safeguard existing development from changes in the scope and intensity of natural hazards (e.g. flood protection works).
Rules
Existing rules should provide an appropriate framework, but may need adjusting to take into account climate change effects (i.e. the inland boundary of the foreshore protection zone, location/extent of flood hazard areas).