Like many such events, this year's World Water Week (Aug 24–28) conference will now
be taking place virtually. Convened by the Stockholm International Water Institute,
the meeting gathers scientists, business leaders, and policy makers, as well as civil
society, to engage on one of the world's most pressing set of challenges.
It was only just over a decade ago, on July 28, 2010, that the UN General Assembly
recognised the human right to water and sanitation, through Resolution 64/292, entitling
everyone to acceptable, accessible, affordable, safe, and sufficient water. And in
2015, the global community set a measurable target in the form of Sustainable Development
Goal (SDG) 6, which committed countries to ensure the availability and sustainable
management of water and sanitation for all by 2030. Where does the world stand now
regarding these rights and targets?
According to the WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation
and Hygiene (JMP) Progress on Household Drinking Water, Sanitation and Hygiene 2000–2017
report, published in 2019, 1·8 billion people gained access to at least basic services
between 2000 and 2017. However, in 2017, 2·2 billion people still lacked access to
safely managed drinking water, 4·2 billion lacked safely managed sanitation, and 3
billion lacked basic handwashing services. Furthermore, the Programme's WASH in Health
Care Facilities global baseline report 2019 showed that one in eight health-care facilities
had no water service and one in five had no sanitation service in 2016. The consequences
of these inadequacies for infection prevention and control amid a pandemic are clear.
As ever, such global figures mask regional inequities and data gaps. In a geostatistical
modelling study of 88 low-income and middle-income countries in this month's issue,
Anriuddha Deshpande and colleagues show that access to piped water was lowest in sub-Saharan
Africa in 2017 and relatively high in Latin America. Deshpande and colleagues also
estimate the number of diarrhoeal deaths in children younger than 5 years that could
be attributed to unsafe facilities and found that, in 2017 in sub-Saharan Africa,
143 300 deaths in children were attributable to unsafe water, and 18 100 child deaths
were avoided by increased access to safe water. In southeast Asia, east Asia, and
Oceania, 9470 child deaths were attributable to unsafe water and increases in safe
water avoided at least 1310 child deaths. The authors acknowledge the limitations
of this work, including insufficient data to produce reliable estimates.
What we do know is that, during the last century, use of water globally has been growing
at more than twice the rate of population growth. Supplies of water are threatened
by climate change, population growth, demographic changes, and urbanisation. In recent
years, an increasing number of cities have come close to or reached the limits at
which they can sustainably supply water services. In January 2018, the announcement
that Cape Town was three months away from “Day Zero” (the date when the municipal
water supply would be cut off) made headlines around the world—a fate that the city
thankfully managed to avoid. Before that, in 2015, São Paulo came within 20 days of
its own “Day Zero” and in June 2019, Chennai's main reservoirs ran completely dry.
This is a cross-continental trio of reminders that the challenge of achieving water
security is here to stay.
Yet could the COVID-19 pandemic mark a step change in the urgency with which the international
community addresses these challenges? In a Comment published in this month's issue,
Adeladza Amegah notes the “tremendous” improvement in access to handwashing facilities
in many African countries, with “handwashing stations noticeably increasing in community
centres, schools, markets, bus terminals, lorry stations, and other public spaces”.
Moreover, “some African governments, as part of their COVID-19 response plans, took
urgent steps to make clean water accessible to all communities by drilling boreholes
and mobilising water tankers to supply water.” He urges national and local governments
to find the fiscal space to continue these practices and sustain the promotion of
handwashing post-COVID.
2 years into the International Decade for Water Action, the complexity of governance
of this abundant yet paradoxically increasingly scarce resource cannot be underestimated.
But if ever there was a moment to seize upon the small gains prompted by a global
event, the moment is now.