So how many years will it last? There's no definitive answer. Water, unlike oil or gas, doesn't disappear completely. It constantly participates in the natural cycle: it evaporates, forms clouds, falls as rain, and returns to rivers and lakes. Therefore, we're not talking about water depletion per se, but about the availability of clean freshwater for people.

The main threats today are population growth, river and lake pollution, climate change, and the unsustainable use of water resources. According to international organizations, billions of people already lack safe drinking water for at least part of the year. The problem is particularly acute in countries with hot climates and rapidly growing populations.

Due to global warming, droughts are intensifying in many regions, glaciers that feed major rivers are melting faster, and precipitation is becoming increasingly unpredictable. This means that water is becoming scarce in some places, while devastating floods are becoming more frequent in others.

The good news is that humanity is not yet facing the prospect of running out of freshwater. With effective wastewater treatment, careful resource management, the implementation of modern irrigation technologies, and reduction of environmental pollution, freshwater reserves may last indefinitely.

Therefore, the key question today is not "when will freshwater run out?" but "will we be able to keep it accessible and clean for future generations?" The decisions we make now will determine whether our children and grandchildren will have access to the planet's most important resource.