i) The projected water crisis is more a crisis of demand rather than supply.
ii) Even if additional supplies are called for, several alternative- and better- measures exist for meeting this demand.
The concept:
The project goal is more to create a 'network' of rivers (similar to the national power grid) than to address the needs of water scarce areas. However, this concept of a water grid has two major flaws:
Rationale of the project:
Flood mitigation and drought relief are the main justifications for the project, which is envisioned as taking water from the 'surplus' areas to the 'deficit' areas.
Flood moderation:
The significant quantities of water that will need to be diverted in order to achieve measurable flood control may not be technically feasible; if it is, this will have serious impacts on the river, its ecosystem and communities downstream of the diversion, on the diversion route, and in the recipient areas. The article raises several questions that need to be answered before thee project can be considered a viable flood moderation measure.
'Surplus' and 'deficit':
There are several problems in calculating the 'surplus' in a basin, one of which is simply that a river serves many ecological purposes as it flows. Just as a river is not a pipe for carrying water, a basin is not merely a bowl to contain it- or spill over. Any diversion of water from a river has consequences which the paper lists in detail. In such a case, the very concept of 'surplus' is questionable. Similarly, if once considers demand management, the idea of a 'deficit' is equally inappropriate.
Power generation:
The claim of net generation of electric power needs study before it can be verified.
Answer to drought:
Areas along rivers are not the worst hit. This project does not serve the areas that are most vulnerable to droughts, which are the uplands and dry lands that are distant from rivers. Secondly, the primary solution to drought needs to be local.
Water for irrigation: Meeting large demands for water through supply side measures does not help the case for increasing water efficiency. Introducing irrigation-dependent agriculture to drought prone areas will increase the farmer's risk.
Minimal lifts:
The article questions the accuracy of the claim that most transfers will be through gravity, with only a few lifts (none greater than 120m). If true, then it is likely that the neediest areas will remain unserved.
Impacts and consequences:
The dying Aral sea is held up as an example of the unintended and unforeseen consequences of large water transfers. This should serve as a warning to India.
Generating new conflicts:
India's history with intra- and inter- state water sharing has been fraught with conflict. Similarly, there is emerging conflicts in the mountain states over the large number of dams being built in those fragile areas. It is expected that this project will exacerbate existing conflicts and create new ones.
International conflicts:
Nearly all the non-peninsular rivers are international in nature, and the project will have serious repercussions on the riparian countries. This will increase conflict with our neighbours in South Asia, especially since the Court judgement has failed to mention them in any way.
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