51吃瓜

The planet is suffering from an unprecedented water crisis, and solving it requires concerted action by institutions and citizens.

Background

Water enables life on Earth. Human beings can survive three weeks without food, but only three days without water.聽, water forms 83% of the lungs, 79% of muscles and kidneys, 73% of the brain and the heart, 64% of the skin and 31% of even the bones. Access to clean water makes life possible. It is little surprise that the United Nations (UN) has declared that ensuring 鈥渁vailability and sustainable management of water and sanitation for all鈥� is one of the Sustainable Development Goals (SDG).

Today, we are living in a world where clean water is increasingly scarce. In 2009, the (WHO) pointed out that more than 3.4 million people die every year because of water-related diseases, making it the leading cause of disease and death around the world. Of the 3.4 million, most are children who die because of pathogens in the water. This occurs because a lack of sanitation and sewage systems ensures that untreated human and animal fecal matter ends up in the water. 罢丑别听聽that 2.4 billion people lack access to sanitation and 663 million to clean drinking water.

Many emerging economies have achieved extraordinary economic growth at the cost of their environment, with water pollution reaching spectacular levels. China, home to more than 1.3 billion people, is a classic example. The Chinese Environment Ministry has聽聽that about 60% of underground water and a third of surface water in China is unfit for human contact. India, with its fast-growing population of over 1.25 billion people, is in a worse state than China. Almost聽聽and a growing percentage of its underground reserves are 鈥渃ontaminated by biological, toxic, organic and inorganic pollutants.鈥� Apart from communicable diseases, water is now causing chronic ones. Heavy metals are making their way via water into the soil and from there into the country鈥檚 food supply. What people eat on a daily basis is damaging their health and wellbeing.

Another worrying trend is that human beings are increasingly using larger quantities of water.聽聽鈥渨ater use has been growing at more than twice the rate of population increase in the last century.鈥� In China, increasing desertification is setting off alarm bells as the Gobi desert 鈥済obbles up 3,600 square kilometers of grassland each year.鈥澛犅爐hat, if current trends continue, 60% of India鈥檚 aquifers will be in a critical condition in 20 years. Already, India relies on its aquifers and pumps out 鈥渁n estimated 230 cubic kilometers of groundwater per year 鈥� over a quarter of the global total.鈥�

罢丑别听聽for the arid Middle East and North Africa (MENA) region and predicts that 鈥減er capita water availability will fall by half by 2050, with serious consequences for the region鈥檚 already stressed aquifers and natural hydrological systems.鈥� Even California, with its lush lawns and backyard swimming pools, is facing a severe drought and imposed its聽聽in April 2015.

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罢丑别听聽once painted by Mark Twain is now considered real by intelligence agencies and many scholars. In the Syrian conflict,聽. Cutting off water supply to achieve 鈥渕ilitary and political gains鈥� is often even more effective than barrel bombs and causes inhuman suffering to millions. Even in societies not at war, rising population, increasing per capita demand and falling supply make an explosive cocktail.

Why Does Clean Water Matter?

Water is literally the essence of life. It might not give people the mythic properties of youth and immortality, but it makes life possible on the planet. Current trends threaten the environment and human existence. People have to realize that water is a scarce and precious resource. Conserving both surface and underground water sources across the world is a necessity, not an option. Similarly, sanitation and sewage systems can wait no longer. Perhaps, even more importantly, human beings have to curb the industrial pollution that is destroying water systems worldwide. Emissions matter. Lowering them would help avert the growing threat of climate change that is causing water scarcity through increasing desertification, frequent droughts and rising sea levels.

There are many efforts underway in different parts of the world to address the water crisis. In China, Beijing, Kunming and other cities are already聽. In India, Rajendra Singh, the winner of the Stockholm Water Prize who is known as 鈥�,鈥� is bringing back to life ancient techniques of rainwater harvesting and involving local communities. In the United States,聽the Massachusetts Institute of Technology (MIT) is 聽in 鈥渆nergy-efficient, low-carbon technologies for creating potable water from saline sources.鈥�

To provide water for the planet, concerted action by international institutions, governments, scientists, civic leaders and the media is essential. The water crisis is existential. Many people are responding to it already. Pooling together knowledge, expertise and resources would make existing efforts more effective.

Eventually, the water crisis has a simple two-pronged solution. First, per capita consumption of water has to go down. Some frugality would go a long way. Second, the supply of water using Singh鈥檚 ancient techniques and MIT鈥檚 modern ones has to increase. Technical innovation with community participation can do wonders.聽Homo sapiens sapiens聽is an innovative social species and has a good shot at solving the planet鈥檚 water crisis if it gets its act together.

The views expressed in this article are the author鈥檚 own and do not necessarily reflect 51吃瓜鈥檚 editorial policy.

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