scholarly journals Mind the Gap! Reconciling Environmental Water Requirements with Scarcity in the Murray–Darling Basin, Australia

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 208
Author(s):  
Matthew J. Colloff ◽  
Jamie Pittock
Keyword(s):  
Climate Change ◽  
Structural Adjustment ◽  
Environmental Water ◽  
Environmentally Sustainable ◽  
Decision Context ◽  
Consumptive Use ◽  
Murray Darling Basin ◽  
Dryland Ecosystems ◽  
Step Down ◽  
Policy Adjustments

The Murray–Darling Basin Plan is a $AU 13 billion program to return water from irrigation use to the environment. Central to the success of the Plan, commenced in 2012, is the implementation of an Environmentally Sustainable Level of Take (ESLT) and a Sustainable Diversion Limit (SDL) on the volume of water that can be taken for consumptive use. Under the enabling legislation, the Water Act (2007), the ESLT and SDL must be set by the “best available science.” In 2009, the volume of water to maintain wetlands and rivers of the Basin was estimated at 3000–7600 GL per year. Since then, there has been a steady step-down in this volume to 2075 GL year due to repeated policy adjustments, including “supply measures projects,” building of infrastructure to obtain the same environmental outcomes with less water. Since implementation of the Plan, return of water to the environment is falling far short of targets. The gap between the volume required to maintain wetlands and rivers and what is available is increasing with climate change and other risks, but the Plan makes no direct allowance for climate change. We present policy options that address the need to adapt to less water and re-frame the decision context from contestation between water for irrigation versus the environment. Options include best use of water for adaptation and structural adjustment packages for irrigation communities integrated with environmental triage of those wetlands likely to transition to dryland ecosystems under climate change.

Irrigator and Environmental Water Management Adaptation to Climate Change and Water Reallocation in the Murray–Darling Basin

2015 ◽  
Vol 01 (03) ◽  
pp. 1550009 ◽  
Author(s):  
Mac Kirby ◽  
Jeff Connor ◽  
Mobin-ud Din Ahmad ◽  
Lei Gao ◽  
Mohammed Mainuddin
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Management Strategies ◽  
Environmental Water ◽  
Adaptation Strategy ◽  
Net Income ◽  
Adaptation To Climate Change ◽  
Murray Darling Basin ◽  
Gross Income ◽  
The Impact

In an earlier paper (Kirby et al. 2014a), we showed that climate change and a new policy which reallocates water to the environment will impact both the flow of water and the income derived from irrigation in the Murray–Darling Basin. Here, we extend the analysis to consider irrigator and environmental water management strategies to adapt to these new circumstances. Using an integrated hydrology-economics model, we examine a range of strategies and their impact on flows and the gross income of irrigation. We show that the adaptation strategies provide a range of flow and economic outcomes in the Basin. Several strategies offer significant scope to enhance flows without large adverse impacts on the gross income of irrigation overall. Some environmental water management strategies enhance flows in the Murray part of the basin even under the drying influence of a projected median climate change. Irrigator strategies that include carryover of water in storage from one year to the next provide for lesser year to year variability in gross income and may be regarded as more advantageous in providing security against droughts. Flows and the gross income of low value irrigation industries strategies are sensitive to climate change, irrespective of adaptation strategy. Should a projected dry extreme climate change be realized, no strategy can prevent a large reduction in flows and also in gross income, particularly of low value irrigation industries. Nevertheless, environmental water management strategies mitigate the impact on flows, and in some cases may also help mitigate the impacts on gross income. High value irrigation industries are less affected (in terms of gross income, though net income will reduce because of rising water prices) by projected climate change, consistent with observation in the recent long term drought.

scholarly journals Shifting Goalposts: Setting Restoration Targets for Waterbirds in the Murray-Darling Basin Under Climate Change

2021 ◽  
Vol 9 ◽  
Author(s):  
Gilad Bino ◽  
Kate Brandis ◽  
Richard T. Kingsford ◽  
John Porter
Keyword(s):  
Climate Change ◽  
Environmental Sustainability ◽  
Life Histories ◽  
River System ◽  
Biodiversity Loss ◽  
Environmental Water ◽  
Freshwater Ecosystems ◽  
Future Climate Change ◽  
Restoration Targets ◽  
Murray Darling Basin

The Murray-Darling Basin (the Basin) is the largest river system in Australia, supplying about 40% of the country’s irrigated agricultural output. Associated water resource development has come with a heavy price for the Basin’s freshwater ecosystems degrading them over decades. Australian governments are attempting to achieve environmental sustainability by returning water to the environment through buy-back of irrigation licences and improved water efficiencies. To determine effectiveness, basin-wide management objectives were established for key indicators, including waterbird populations and life histories which can effectively indicate ecosystem function and condition, driven by flow and flooding regimes. Ongoing monitoring of waterbird numbers indicates continued declines. We evaluated the feasibility of meeting established waterbird objectives under existing and predicted climates. We modelled long-term waterbird numbers using one of the world’s largest ongoing waterbird surveys (1983–2020), covering about 13.5% of the area of the entire Basin. Our findings suggest that under near future climate change projections, waterbird numbers will likely continue to decline, and remain below restoration targets set for the Basin. We discuss the current policy settings for using environmental water to support waterbird populations, recommending adjustments to restore the Basin’s waterbird populations and their wetlands in order to meet Australia’s conservation targets in relation to the ongoing global crisis of biodiversity loss.

Fighting climate change: What’s being mindful, outside and at school got to do with it?

2021 ◽  
Author(s):  
Brian Pham
Keyword(s):  
Climate Change ◽  
Terror Management Theory ◽  
Sustainable Consumption ◽  
Terror Management ◽  
Management Theory ◽  
Connection To Nature ◽  
Consumption Behavior ◽  
Environmentally Sustainable ◽  
Existential Crisis ◽  
Undergraduate Programs

Although climate change education strategies have succeeded in spreading awareness, they also create a sense of fear and urgency that not only fails to change environmentally unsustainable behavior but may increase this behavior. The failure of current strategies and the paradoxical increase of environmentally unsustainable behavior may be explained by a theory known as terror management theory. This theory posits that if people are faced with an existential crisis, like climate change, they may cling even tighter onto their current ways. A novel solution to alleviate terror management theory is inspiring and empowering people. Inspiration and empowerment will teach people to see environmentally sustainable behavior as a healthier alternative to their current ways rather than an existential crisis. Therefore, they are more likely to welcome change rather than fear it. My study aims to see if mindfulness, connection to nature, and differing undergraduate programs affects sustainable consumption behavior. These factors are thought to inspire and empower people. If these factors can affect sustainable consumption behavior, then they may inspire and empower people to fight climate change. I predict that individuals who are more mindful and connected to nature will also have more sustainable consumption behavior. Furthermore, programs that highlight environmental issues will allow students to have a better connection to nature and more sustainable consumption behavior. If there is evidence to support, my hypotheses then factors that influence sustainable consumption behavior should be taught in schools. These factors would not only increase environmental behavior but increase the student’s overall wellbeing.

scholarly journals Determining regional limits and sectoral constraints for water use under climate change

2014 ◽  
Vol 11 (5) ◽  
pp. 4695-4727
Author(s):  
T. K. Lissner ◽  
C. A. Sullivan ◽  
D. E. Reusser ◽  
J. P. Kropp
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Climate Models ◽  
Integrated Approach ◽  
Environmental Water ◽  
Population Projections ◽  
Water Users ◽  
Industrial Sectors ◽  
Water Volumes ◽  
Main Determinants

Abstract. Water is an essential input to the majority of human activities. Often, access to sufficient water resources is limited by quality and infrastructure aspects, rather than by resource availability alone, and each activity has different requirements regarding the nature of these aspects. This paper develops an integrated approach to assess the adequacy of water resources for the three major water users, the domestic, agricultural and industrial sectors. Additionally, we include environmental water requirements. We first outline the main determinants of water adequacy for each sector. Subsequently, we present an integrated approach using fuzzy logic, with allows assessing sector-specific as well as overall water adequacy. We implement the approach in two case study settings to exemplify the main features of the approach. Using results from two climate models and two forcing RCPs (Representative Concentration Pathways) as well as population projections, we further assess the impacts of climate change and population growth on the adequacy of water resources. The results provide an important step forward in determining the most relevant factors, impeding adequate access to water, which remains an important challenge in many regions of the world. The methodology allows to directly identify those factors most decisive in determining the adequacy of water in each region, pointing towards the most efficient intervention points to improve conditions. Our findings underline the fact that in addition to water volumes, water quality is a limitation for all sectors and especially for the environmental sector, high levels of pollution are a threat to water adequacy.

scholarly journals Materials for the 21st century

2018 ◽  
Vol 49 (5-6) ◽  
pp. 14-17
Author(s):  
Jessica Wade ◽  
Sebastian Wood
Keyword(s):  
Climate Change ◽  
Economic Impact ◽  
21St Century ◽  
Consumer Demand ◽  
Raw Materials ◽  
Environmentally Sustainable ◽  
Sustainable Solutions

The combined challenges of growing populations, climate change and increasing scarcity of raw materials is driving innovation in materials and design. The motivation to innovate comes from the economic impact of not doing so, as well as consumer demand, with mature customers actively seeking out more environmentally sustainable solutions.

Risks, Uncertainty and Climate Confusion in the Murray–Darling Basin Reforms

2016 ◽  
Vol 03 (03) ◽  
pp. 1650038 ◽  
Author(s):  
Jason Alexandra
Keyword(s):  
Climate Change ◽  
Water Policy ◽  
Water Governance ◽  
Climate Science ◽  
Cultural Construction ◽  
Policy Integration ◽  
Institutional Settings ◽  
Murray Darling Basin ◽  
Financial Consequences ◽  
Key Dimensions

Risks and uncertainties arising from climate change are increasingly recognized as significant challenges for water governance. To support adaptive approaches, critical examinations of water policy practices and rationalities are needed. This paper focuses on the treatment of climate change in Australia’s Murray–Darling Basin (MDB) reforms over the past decade. While the MDB faces potentially significant drying trends due to climate change no reductions in future water availability due to climate change were formalized in the 2012 Basin Plan — a regulatory instrument agreed to by Australia’s National Parliament. The background, key dimensions and possible reasons for this decision are examined. Possible reasons for not formally reducing water deemed available in the future include the complexity and uncertainty of climate science, the cultural construction of “climate normal” based on long-term averages, and institutional settings that reinforce dominant “hydro-logical” approaches and rationalities. Minimizing the political, legal and financial consequences of attributing reductions in water allocations to climate change are also potential reasons. The case of the MDB, as outlined in this paper, demonstrates some of the ways climate change is causing systemic challenges for adaptive water governance, and that innovative approaches need to be embraced, including better processes for institutionalizing science/policy integration.

Water policy responses to drought in the MDB, Australia

Water Policy ◽  
2016 ◽  
Vol 18 (S2) ◽  
pp. 28-51 ◽  
Author(s):  
James Horne
Keyword(s):  
Water Policy ◽  
Resource Planning ◽  
Environmental Water ◽  
Short Term ◽  
National Budget ◽  
Policy Responses ◽  
Murray Darling Basin ◽  
Millennium Drought ◽  
Basin Water ◽  
Market Infrastructure

This paper reviews water policy responses to drought in Australia, focusing on the Murray-Darling Basin (MDB) during the two decades from 1997. This period, which includes the decade long Millennium drought, brought a much sharper focus to discussions of scarcity and value of water. The drought initially focused attention on rising salinity and environmental water availability, as action on both was supported by strong science, and resonated politically. The drought became a crisis in 2006. Short-term planning focused on ensuring communities did not run out of water. For the longer term, the national government responded by announcing a major package of reform measures addressing sustainability and underlying scarcity, and recognising climate change. The package strengthened MDB water market infrastructure, upgraded water resource planning and the ability of irrigators to manage their water assets more flexibly, established new sustainable diversion limits and provided funding to ensure the environment received a larger share of basin water resources. But its completeness as a package can be attributed not only to the severity of drought, but also to political leadership, a disrupting strategy in the form of national legislation and a strong national budget that provided financial resources. The drought provided a crisis, but other ingredients were necessary to ensure effective action.

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