Q. Why is the world today confronted with a crisis of availability of and access to freshwater resources?
Question from UPSC Mains 2023 GS1 Paper
Model Answer:
Crisis of availability of and access to freshwater resources
The world today faces a critical crisis in freshwater availability and access, stemming from multiple interconnected factors. This challenge threatens human health, food security, economic stability, and ecological balance, making it a pivotal issue for global sustainability.
1. Population Growth and Urbanization:
– Rapidly increasing global population puts immense pressure on water resources
– Urban expansion leads to higher water demand and often outpaces infrastructure development
– Concentrated water usage in cities strains local water sources
2. Climate Change:
– Altering precipitation patterns, causing droughts in some regions and floods in others
– Melting glaciers affect long-term water availability in glacier-fed river systems
– Rising temperatures increase evaporation rates, reducing surface water availability
3. Agricultural Demands:
– Agriculture accounts for about 70% of global freshwater withdrawals
– Inefficient irrigation practices waste significant amounts of water
– Water-intensive crops cultivated in water-scarce regions exacerbate the problem
4. Industrial Usage:
– Industrial processes consume large quantities of water
– Water pollution from industrial discharge renders many water sources unusable
5. Groundwater Depletion:
– Overexploitation of aquifers, especially in arid and semi-arid regions
– Slow recharge rates unable to keep pace with extraction
– Subsidence and saltwater intrusion in coastal areas due to excessive pumping
6. Water Pollution:
– Contamination of surface and groundwater sources by agricultural runoff, industrial effluents, and domestic sewage
– Eutrophication of water bodies, making them unsuitable for use
– Inadequate wastewater treatment infrastructure in many developing countries
7. Inequitable Distribution and Access:
– Geopolitical tensions over shared water resources
– Economic disparities leading to unequal access to clean water
– Lack of infrastructure in rural and marginalized urban areas
8. Inefficient Water Management:
– Outdated water distribution systems with high leakage rates
– Lack of water pricing mechanisms to encourage conservation
– Insufficient investment in water infrastructure and technology
9. Ecosystem Degradation:
– Destruction of wetlands and forests that play crucial roles in water cycle regulation
– Altered river flows due to damming and diversion, affecting downstream ecosystems and communities
10. Lack of Awareness and Education:
– Insufficient understanding of water conservation practices among the general public
– Inadequate knowledge about the long-term consequences of water misuse
Addressing this water crisis requires a multi-faceted approach involving sustainable management, technological innovation, policy reforms, and international cooperation. Improving efficiency, investing in treatment and recycling, and adopting integrated water resources management are key to ensuring water security for future generations.