Dear Colleagues,

As argued March 23^rd, World Water Day, we face persistent drought (falling water tables and river flows), commonly unconstrained pollution and wasteful over-consumption, which means that water has become rarely cheap, increasingly unsafe, and, all too often, not readily available. Water scarcity has become a common problem, but so too has flooding and devastating environmental impact from rising tides and crumbling infrastructure—costal and throughout river systems. International disputes over draw off imbalances and inadequate transborder flows still threaten conflict and raise troubling security concerns, while economic development and prosperity are often hampered by failed water conservation and management, as well as ill-conceived policies. What are the prospects for increased innovation and imagination in management strategies and technology development?

This proposed Special Issue seeks to collect and integrate national and regional case studies from various geographies that respond to the persistent questions and challenges of water scarcity and security. The issue will seek to examine the prospects for nature-based solutions to help moderate extreme flooding events, purify water, control erosion and coastal flooding through emerging programs of conservation agriculture, wetlands restoration, and forest conservation, among others. We also seek to examine promising technological approaches to desalination, waste water reclamation and filtering (including the application of nanotechnology membrane devices for separation of pollutants). We shall also seek studies that explore the complex relationships between water, energy and food as ingredients to security and prosperous and sustainable economic relations. Is there progress on remediating the role of irrigation in resource depletion in the face of rising food demand and settlement patterns? Can the design, installation, and management of hydropower installations be improved? Finally, are there examples of progress in bilateral and regional water accords and institutions to improve water security and mutual prosperity?

Prof. Dr. Norman Graham
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• water resources management
• water security
• transborder water disputes
• nature-based water solutions
• hydropower design
• sustainable irrigation
• nanotechnology filtering membranes
• conservation agriculture
• water, energy, food nexus
• sustainable economies