Legacy nitrogen may prevent achievement of water quality goals in the Gulf of Mexico

Science, Journal Year: 2018, Volume and Issue: 360(6387), P. 427 - 430

Published: March 22, 2018

Haunted by the past Reducing extent of hypoxia in Gulf Mexico will not be as easy reducing agricultural nitrogen use. Van Meter et al. report that so much from runoff has accumulated Mississippi River basin that, even if future inputs are eliminated, it still take 30 years to realize 60% decrease load needed reduce eutrophication Gulf. This legacy effect means a dramatic shift land-use practices, which may compatible with current levels production, control Mexico. Science , this issue p. 427

Language: Английский

---

Implementing the “Sustainable Development Goals”: towards addressing three key governance challenges—collective action, trade-offs, and accountability

Current Opinion in Environmental Sustainability, Journal Year: 2017, Volume and Issue: 26-27, P. 90 - 96

Published: June 1, 2017

Language: Английский

---

Best Management Practices for Diffuse Nutrient Pollution: Wicked Problems Across Urban and Agricultural Watersheds

Environmental Science & Technology, Journal Year: 2020, Volume and Issue: 54(15), P. 9159 - 9174

Published: July 9, 2020

Extensive time and financial resources have been dedicated to address nonpoint sources of nitrogen phosphorus in watersheds. Despite these efforts, many watersheds not seen substantial improvement water quality. The objective this study is review the literature investigate key factors affecting lack nutrient levels waterways urban agricultural regions. From 94 studies identified academic literature, we found that, although 60% improvements quality after implementation Best Management Practices (BMPs) within watershed, were mostly modeling rather than field monitoring studies. For that unable find BMPs, was attributed knowledge about BMP functioning, lag times, nonoptimal placement distribution BMPs postimplementation failure, socio-political economic challenges. We refer limiting as known unknowns. also acknowledge existence unknown unknowns hinder further effectiveness suggest machine learning, approaches from business operations management, long-term convergent could be used resolve

Language: Английский

---

Assessing the Governance Capacity of Cities to Address Challenges of Water, Waste, and Climate Change

Water Resources Management, Journal Year: 2017, Volume and Issue: 31(11), P. 3427 - 3443

Published: May 27, 2017

The challenges of water, waste, and climate change in cities are overwhelming underpin the importance overcoming governance issues impeding adaptation. These "governance challenges" typically have fragmented scopes, viewpoints, responsibilities. As there many causes leading to this uncertainty disagreement, is no single best approach solve these challenges. In fact, what necessary iterative requires capacity find dynamic long-term solutions that supported by flexible interim targets, so as anticipate emerging barriers changing situations. literature contains a plethora gaps, barriers, capacities, which sometimes overlap, contradictory case-specific, reflect disciplinary scopes. We argue balanced set well-developed conditions needed, obtain enables effective change. Therefore, we aim deeper understanding key determining urban water capacity, developing an integrated empirical-based consistent city comparisons facilitates decision-making. propose framework focusing on five challenges: 1) scarcity, 2) flood risk, 3) wastewater treatment, 4) solid waste treatment 5) heat islands. Nine conditions, each with three indicators, identified empirically assessed using Likert-type scoring method. illustrated case study Amsterdam, Netherlands. conclude our shows great potential improve

Language: Английский

---

Tackling wicked environmental problems: The discourse and its influence on praxis in Scotland

Landscape and Urban Planning, Journal Year: 2016, Volume and Issue: 154, P. 44 - 56

Published: May 12, 2016

Language: Английский

---

Decentralised energy, decentralised accountability? Lessons on how to govern decentralised electricity transitions from multi-level natural resource governance

Global Transitions, Journal Year: 2020, Volume and Issue: 2, P. 16 - 25

Published: Jan. 1, 2020

Emerging decentralised electricity systems require new approaches to energy governance. As sources shift and technology evolves, governance is shifting from largely centralized models include multiple multi-level sites not bounded in their operations by established democratic processes. New forms of accountability are required ensure that meet societal needs expectations. While dynamics for many systems, they common across other resources (e.g. water). This article uses an OECD framework synthesizes decades research on natural resource describe 12 principles "good" These developed applied decentralising contexts order develop mechanisms, identify potential gaps, relevant ensuring systems. The nature particularly highlights the need rescale functions, while paying attention issues inclusion, capacity building, coherence, adaptiveness, transparency.

Language: Английский

---

Model predictive control of stormwater basins coupled with real-time data assimilation enhances flood and pollution control under uncertainty

Water Research, Journal Year: 2023, Volume and Issue: 235, P. 119825 - 119825

Published: March 3, 2023

Smart stormwater systems equipped with real-time controls are transforming urban drainage management by enhancing the flood control and water treatment potential of previously static infrastructure. Real-time detention basins, for instance, has been shown to improve contaminant removal increasing hydraulic retention times while also reducing downstream risk. However, date, few studies have explored optimal strategies achieving both quality targets. This study advances a new model predictive (MPC) algorithm ponds that determines outlet valve schedule needed maximize pollutant minimize flooding using forecasts incoming pollutograph hydrograph. Comparing MPC against three rule-based strategies, is found be more effective at balancing between multiple competing objectives such as preventing overflows, peak discharges, improving quality. Moreover, when paired an online data assimilation scheme based on Extended Kalman Filtering (EKF), robust uncertainty in measurements. By providing integrated strategy optimizes quantity goals remaining hydrologic dynamics, this paves way real-world smart will achieve improved nonpoint source pollution management.

Language: Английский

---

The gift of mobility: Transfer networks of local decision‐makers and interlocal collaboration

Review of Policy Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract Exploring the role of key individuals in institutional collective action (ICA) and interlocal collaboration contributes to understanding micro‐mechanisms policy process. The career mobility local decision‐makers through transfers among jurisdictions is a common phenomenon. This phenomenon gives rise transfer networks decision‐makers. Despite prevalence these networks, they have received relatively little attention studies on collaboration. It unclear how decision‐makers' different network characteristics affect article explains that play by embedding social with based ICA framework. study used dyadic panel dataset Chinese inter‐provincial watershed environmental from 2007 2019 for empirical research. results show existence increases likelihood ties constructed their paths are responsible functioning networks. higher when exhibit successiveness, diagonal promotion characteristics, collegiality.

Language: Английский

---

A new paradigm for water? A comparative review of integrated, adaptive and ecosystem-based water management in the Anthropocene

International Journal of Water Resources Development, Journal Year: 2014, Volume and Issue: 30(3), P. 377 - 390

Published: April 25, 2014

The failure of conventional approaches to achieve equitable and sustainable water management has prompted a new way perceiving acting with water. This is creating 'new paradigm' that emphasizes broader stakeholder involvement; integration sectors, issues disciplines; attention the human dimensions management; wider recognition economic, ecological cultural values article reviews three arising within paradigm: integrated resources ecosystem-based approaches; adaptive management. concludes strengths each approach address different moral challenges. Combining these strengths, while minimizing tensions, may contribute more effective in Anthropocene.

Language: Английский

---

Coastal Lagoons in Europe: Integrated Water Resource Strategies

Water Intelligence Online, Journal Year: 2015, Volume and Issue: 14

Published: June 1, 2015

Lagoons represent nearly 13% of the shoreline globally and around 5% in Europe. Coastal lagoons are shallow water bodies separated from ocean by a barrier (e.g., narrow spit), connected at least intermittently to one or more restricted inlets, usually geographically oriented parallel shore-line. flexible able cope with environmental change, yet nowadays they under threat. This is partly due climate change impacts (for example, sea-level rise hydro-meteorological extreme events) but also direct human activities pressures.The book focuses on addressing these challenges through integrated management strategies seen land-sea science-stakeholder-policy perspective. Pan-European context perspectives Policy, Environment Modelling. Four case study different geographical locations Europe provide examples some practical experiences results challenges. Possible drainage basins introduced scenarios which were developed multi-science land-lagoon science perspective combined interactions contributions stakeholders citizens.Issues conditions both included.The derives collaborative EC-funded project entitled Integrated Water Resources Zone Management European Context Climate Change comprising nine partner institutes wide diversity scientific disciplines covered.This title belongs Research SeriesISBN: 9781780406299 (eBook)ISBN: 9781780406282 (Print)DOI: 10.2166/9781780406299This eBook was made Open Access May 2016

Language: Английский

---