Syllabus: General Studies Paper 2
Context
- The Global Water System Project, which was launched in 2003 as a joint initiative of the Earth System Science Partnership (ESSP) and Global Environmental Change (GEC) programme, epitomizes global concern about the human-induced transformation of fresh water and its impact on the earth system and society.
Fresh water, water valuation:
- Fourth assessment report of the Intergovernmental Panel on Climate Change (IPCC) in 2007 highlighted the link between societal vulnerability and modifications of water systems.
- It is globally estimated that the gap between demand for and supply of freshwater may reach up to 40% by 2030 if present practices continue.
- The latest UN World Water Development Report, 2021, titled ‘Valuing Water’, has laid stress on the proper valuation of water by considering five interrelated perspectives:
- Water sources
- Water infrastructure
- Water services
- Water as an input to production
- Socio-economic development and socio-cultural values of water.
Inter-basin transfer projects:
- The intra- and inter-basin transfer (IBT) of water is a major hydrological intervention to rectify the imbalance in water availability due to naturally prevailing unequal distribution of water resources within a given territory.
- The National River Linking Project of India is under construction which is one of the projects of IBT initiatives across the world.
- These projects, if executed, will create artificial water courses that are more than twice the length of the earth’s equator and will transfer 1,910 km3 of water annually.
- The World Wildlife Fund/World Wide Fund for Nature (2009) has suggested a cautious approach and the necessity to adhere to sustainability principles set out by the World Commission on Dams while taking up IBT projects.
Read More