Water and sanitation

Water and sanitation are pivotal elements of the Sustainable Development Goals (SDGs), primarily encapsulated in SDG 6 (Clean Water and Sanitation). This goal seeks to ensure the availability and sustainable management of water and sanitation for all by 2030. This objective directly addresses the current global water crisis, where nearly 2.2 billion people live without access to safe water, and about 4.2 billion lack access to adequate sanitation.

By focusing on improving water quality, increasing water-use efficiency, implementing integrated water resources management at all levels, and protecting and restoring water-related ecosystems, SDG 6 addresses not only direct human needs but also the broader ecological health of the planet. Furthermore, efforts towards achieving SDG 6 indirectly promote several other SDGs.

For instance, water and sanitation are crucial to achieving SDG 3 (Good Health and Well-being), as clean water and proper sanitation facilities reduce the spread of water-borne diseases and significantly lower child and maternal mortality rates. Likewise, they are foundational to SDG 4 (Quality Education), given that the provision of water and sanitation facilities in schools significantly impacts the attendance and performance of students, particularly for girls.

SDG 2 (Zero Hunger) also intersects with water and sanitation, as sustainable and efficient water management is critical for agriculture, which remains the largest global water consumer. The necessity of water for food production and the potential impact of improved water management on crop yields and livestock health makes SDG 6 integral to achieving zero hunger.

SDG 6 contributes to SDG 1 (No Poverty) and SDG 8 (Decent Work and Economic Growth) as well. Access to clean water and sanitation can enhance economic productivity by reducing time spent gathering water, reducing healthcare costs due to water-related diseases, and even creating jobs in water and sanitation services sectors.

In terms of environmental impact, the sustainable management of water resources is essential for SDG 13 (Climate Action), as water is a key factor in managing climate change due to its role in agriculture and energy production.

Graphical abstract
In this review, the authors discuss the drivers, fundamental science, and potential enabling materials for high selectivity membranes, as well as their applications in different water treatment processes.
Figure showing the four main atmospheric water harvesting processes
Producing clean, fresh drinking water from atmospheric water vapor can play an important role in alleviating water scarcity in drought-prone regions of the world. This perspective explores the current trends and future outlook for atmospheric water harvesting technologies.

Major challenges faced by the human population in recent times include population increase, resource depletion and deterioration of environmental quality. The scarcity of food for the rising population is a critical issue faced by the world in wake of the unpredicted change in climatic conditions. The aquaculture industry plays an important role in solving global food scarcity. It is projected that the share of fish for human consumption originating from aquaculture is projected to increase from 52% (average for the period 2016–2018) to 58% in 2028.

This paper explores a customary system of water governance in Ghana.

COP26 is the 2021 United Nations annual climate change conference. COP stands for Conference of the Parties. Parties are the signatories of the United Nations Framework Convention on Climate Change (UNFCCC) - a treaty agreed in 1994 which has 197 Parties (196 countries and the EU). The 2021 conference, hosted by the UK, together with our partners Italy, in Glasgow, will be the 26th meeting of the Parties, which is why it's called COP26.

Elsevier,

Environmental Water Requirements in Mountainous Areas, 2021, Pages 281-292

Looks at the links between sustainability of water in mountainous areas and sustainability.
This study provides new insights into the potential use of machine learning in hydrological simulations.
Graphical abstract
This study applies a two-step validation method of a groundwater potential mapping approach and can improve groundwater mapping for data scarce regions.
In an urbanized catchment, land use has a strong effect on water quality. The majority of the landscape metrics are correlated with Ave River Basin water quality. Water quality is dependent on landscape planning. Ave River Basin requires landscape intervention to restore hydric resources.
This paper touches upon virus removal technology for groundwater remediation.

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