As the global freshwater crisis intensifies, experts are urging a shift in perspective—one that embraces the vast potential of saline water. With 97.43% of Earth’s water classified as saline and only 2.57% as freshwater, the current reliance on a tiny fraction of the planet’s reserves is proving unsustainable.
Despite growing demand from a rising global population and increasing climate pressures, most water strategies remain narrowly focused on conserving and reallocating freshwater. This mindset, rooted in the belief that saline water is unsuitable for drinking, agriculture, or industry, has hindered innovation and adaptation.
India, for example, faces severe water stress, with nearly 600 million people affected. Yet solutions continue to revolve around rainwater harvesting, dam construction, and efficiency measures—all within the freshwater domain.
The article argues for a paradigm shift: adopting the concept of a “saline water footprint”—the volume of saline water used in producing goods and services. By replacing freshwater-intensive crops with salt-tolerant alternatives like halophytes, mangroves, and saline-adapted horticulture, vast amounts of freshwater could be conserved.
Additionally, the oceans offer untapped economic and nutritional resources, from edible sea plants to seafood, which already contribute to reducing freshwater dependence. With 38% of the world’s population living near coastlines, the potential for saline-based solutions is immense.
To move forward, global water policies must integrate desalination, saline agriculture, and marine resource utilization into a unified framework. Institutionalizing the saline water footprint across sectors could transform the freshwater crisis into a sustainable future.
India, with its 11,000 km coastline, is well-positioned to lead this transition—ushering in a “saline century” that redefines water security for generations to come.
(Source: Deccan Herald)