scholarly journals Engaging with Communities for Climate Change Adaptation

2020 ◽  
Author(s):  
Janet Stephenson ◽  
Jule Barth ◽  
Sophie Bond ◽  
Gradon Diprose ◽  
Caroline Orchiston ◽  
...  

Many of New Zealand’s urban settlements are likely to be affected by climate-induced hazards such as sea level rise, coastal erosion, flooding and rising groundwater levels, and some are already being affected. These communities face many physical, social, financial and emotional challenges, and there is significant potential for inequitable outcomes. To ensure successful adaptation, local authorities will need to adopt new approaches to engaging with communities that are exposed to these hazards.

2020 ◽  
Author(s):  
Janet Stephenson ◽  
Jule Barth ◽  
Sophie Bond ◽  
Gradon Diprose ◽  
Caroline Orchiston ◽  
...  

Many of New Zealand’s urban settlements are likely to be affected by climate-induced hazards such as sea level rise, coastal erosion, flooding and rising groundwater levels, and some are already being affected. These communities face many physical, social, financial and emotional challenges, and there is significant potential for inequitable outcomes. To ensure successful adaptation, local authorities will need to adopt new approaches to engaging with communities that are exposed to these hazards.


2020 ◽  
Vol 16 (2) ◽  
Author(s):  
Janet Stephenson ◽  
Jule Barth ◽  
Sophie Bond ◽  
Gradon Diprose ◽  
Caroline Orchiston ◽  
...  

Many of New Zealand’s urban settlements are likely to be affected by climate-induced hazards such as sea level rise, coastal erosion, flooding and rising groundwater levels, and some are already being affected. These communities face many physical, social, financial and emotional challenges, and there is significant potential for inequitable outcomes. To ensure successful adaptation, local authorities will need to adopt new approaches to engaging with communities that are exposed to these hazards.


2020 ◽  
Author(s):  
Rosanne Martyr-Koller ◽  
Tabea Lissner ◽  
Carl-Friedrich Schleussner

<p>Climate impacts increase with higher warming and evidence is mounting that impacts increase strongly above 1.5°C. Therefore, adaptation needs also rise substantially at higher warming levels. Further<strong>, </strong>limits to adaptation will be reached above 1.5°C and loss and damage will be inferred. Coastal Nature-based Solutions (NbS) have arisen as popular adaptation options, particularly for coastal developing economies and Small Island Developing States (SIDS), because of their lower overall costs compared to traditional grey infrastructure approaches such as seawalls and levees; their economic co-benefits through positive effects on sectors such as tourism and fisheries; and a broader desire to shift toward so-called blue economies. Two NbS of particular interest for coastal protection are: 1) coral reefs, which reduce coastal erosion and flooding through wave attenuation; and 2) mangroves, which provide protection from storms, tsunamis and coastal erosion. Although there is international enthusiasm to implement these solutions, there is limited understanding of the future viability of these ecosystems, particularly in their capacities as coastal adaptation service providers, in a warmer world.</p><p>In this presentation, we highlight how long and with how much coverage coral and mangrove ecosystems can provide coastal protection services for future climate scenarios, using air temperature and sea level rise as climate change indicators. A mathematical model for each ecosystem is developed, based on the physical parameters necessary for the sustainability of these ecosystems. We investigate the protective capabilities of each ecosystem under warming and sea level rise scenarios compatible with: below 1.5°C warming; below 2°C warming; warming based on current global commitments to carbon emissions reductions (3-3.5°C); and with no carbon mitigation (6°C). Results show what temperature and sea level rise values beyond which these ecosystems can no longer provide coastal protective services. These results have also been framed in a temporal window to show when these services may not be feasible, beyond which more costly adaptation measures and/or loss and damage may be incurred.</p>


2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Vanessa James ◽  
Catherine Iorns ◽  
Patrick Gerard

Local authorities in New Zealand have a significant responsibility to their communities for managing the effects of sea level rise due to climate change. However, while most local authorities are well engaged and have a clear understanding of issues arising from sea level rise, 73% report that their organisations do not receive enough direction from central government on how to respond. Territorial authorities in particular are seeking a stronger lead, such as legislative reform, clearer and more directive policy, clarification of responsibilities, or a national environmental standard on coastal hazard management. Central government direction is seen as critical to achieve a nationally consistent and equitable approach for coastal communities. This article summarises how this could be addressed, and identifies key challenges facing local government in adapting to sea level rise and climate change.


Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2167
Author(s):  
Mohamed Jalal EL Hamidi ◽  
Abdelkader Larabi ◽  
Mohamed Faouzi

Many coastal aquifers have experienced seawater intrusion (SWI) into fresh groundwater aquifers. The principal causes of SWI include over-pumping and events such as climate change (CC) and rising sea levels. In northern Morocco, the Rmel-Oulad Ogbane coastal aquifer (ROOCA) supplies high-quality groundwater for drinking water and agriculture. This favorable situation has led to increased pumping, resulting in environmental challenges such as dropping water table and SWI. Furthermore, the climate has resulted in less recharge, with an estimated annual precipitation of 602 mm and an average temperature of 18.5 °C. The goal of this study is to determine how CC, over-pumping, and sea-level rise (SLR) affect SWI. Computational groundwater and solute transport models are used to simulate the spatial and temporal evolution of hydraulic heads and groundwater solute concentrations. The calibration is based on steady and transient groundwater levels from 1962 to 2040. SWI simulations show that the NW sector of the coastal area would be polluted, with the toe reaching 5.2 km inland with a significant salinity (15–25 g/L). To protect the fresh water in the reservoir from SWI, enhanced groundwater development and management approaches for this aquifer are required, such as artificial recharge from surface water.


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