For years we have spoken of drought, water emergencies, and water stress as temporary phenomena, crises to be addressed with some restrictions or with wetter seasons. Today, however, many scientists argue that these definitions are no longer sufficient.
According to a recent report by the UN University Institute for Water, Environment and Health, the world has entered a new phase defined as “global water bankruptcy”: a condition in which numerous water systems on the planet are consuming more water than they can naturally regenerate, exceeding thresholds that may no longer be reversible.
It is therefore not just a temporary shortage of rain, but a structural change affecting aquifers, lakes, rivers, glaciers, and soils. And one that inevitably also involves the way we design gardens, cultivate the landscape, and use water every day.
From water crisis to bankruptcy
A problem caused mainly by humans
Soil: the first water reservoir to protect
Why the garden of the future will have to change
The water crisis affects everyone
From water crisis to bankruptcy
There is an important difference between water scarcity and water bankruptcy.
Water stress describes a situation in which water demand temporarily exceeds availability. A water crisis can be more intense, but it often remains manageable with emergency interventions or temporary restrictions.
Water bankruptcy, on the other hand, describes something much deeper: a system that has consumed its natural capital to the point of no longer being able to return to its original conditions. It is somewhat what happens to depleted soil after years of intensive exploitation: even if the rain returns, the original balance does not automatically rebuild itself.
According to the United Nations report, many of the planet's major water basins are already experiencing this condition. Groundwater levels are falling faster than they can recharge, glaciers are retreating, lakes are losing volume and numerous rivers can no longer reach the sea during part of the year.
A problem caused mainly by humans
Deforestation, urbanization, soil sealing, intensive agriculture and excessive groundwater consumption are profoundly altering the natural functioning of ecosystems. Degraded soil retains less water. An overexploited aquifer takes decades to regenerate. An impoverished landscape evaporates available moisture more quickly.
This is why today we are increasingly speaking of anthropogenic drought: a drought amplified by human activities and not just by climatic conditions. The consequences are already visible even in the Mediterranean basin, where summers are becoming longer and hotter, while precipitation is concentrated in short and violent events. On one hand, long dry periods; on the other, water bombs that the soil can no longer properly absorb.
Soil: the first water reservoir to protect
We often imagine water as something that flows in rivers or accumulates in lakes, but the planet's first major water reservoir is the soil.
Healthy soil works like a sponge: it absorbs rainwater, retains it, and slowly releases it to the roots and the atmosphere. When the soil is compacted, depleted, or left bare, however, water tends to flow quickly on the surface without truly infiltrating.
This is why soil health is also central to managing the water crisis. Techniques such as organic mulching, reducing aggressive tillage, using resilient plants, and creating low-water-use Mediterranean gardens are not just aesthetic or maintenance choices: they are becoming concrete tools for climate adaptation.
Why the garden of the future will have to change
For decades, many green spaces were designed taking the constant availability of water for granted. High-water-use lawns, species ill-suited to the local climate, and intensive irrigation became the norm.
Today, this model is showing all its limitations. Not only for environmental reasons, but also practical and economic ones. In many Mediterranean areas, it will be increasingly necessary to design gardens capable of coexisting with long dry periods, high temperatures, and irregular precipitation. This does not mean giving up on greenery, but rethinking it in a more resilient and natural way.
Mediterranean plants, alternative lawns, protected soils, and smart water management will become increasingly central elements of the contemporary landscape.
The water crisis affects everyone
One of the most important aspects highlighted by recent studies is that water bankruptcy does not remain confined to a specific place.
Water is closely linked to agricultural production, economic stability, and global food security. When a territory loses its ability to retain and manage water, the consequences are reflected in food production, prices, ecosystems, and even human migration.
According to United Nations data:
over 2 billion people do not have stable access to safe drinking water;
about 4 billion face severe water scarcity for at least one month a year;
70% of major aquifers show a steady decline;
numerous glaciers could disappear within a few decades.
Faced with these scenarios, talking only about an emergency is no longer enough. A cultural transformation is needed that brings the value of soil, water, and natural ecosystems back to the center.
Recovering a more balanced relationship with water, therefore, means designing more resilient landscapes, reducing waste, protecting the soil, and learning to work with the climate instead of against it. And perhaps it is precisely here that the contemporary garden can become something more than an ornamental space: a small ecosystem capable of adapting, retaining life, and contributing - even in a small way - to a more conscious management of natural resources.