from The Conversation
-- this post authored by Bhaskar Vira, University of Cambridge
India is facing one of its most serious droughts in recent memory - official estimates suggest that at least 330m people are likely to be affected by acute shortages of water. As the subcontinent awaits the imminent arrival of the monsoon rains, bringing relief to those who have suffered the long, dry and exceptionally warm summer, the crisis affecting India's water resources is high on the public agenda.
Unprecedented drought demands unconventional responses, and there have been some fairly unusual attempts to address this year's shortage. Perhaps most dramatic was the deployment of railway wagons to transport 500,000 litres of water per day across the Deccan plateau, with the train traversing more than 300km to provide relief to the district of Latur in Maharashtra state.
The need to shift water on this scale sheds light on the key issue that makes water planning in the Indian subcontinent so challenging. While the region gets considerable precipitation most years from the annual monsoon, the rain tends to fall in particular places - and for only a short period of time (about three months). This water needs to be stored, and made to last for the entire year.
In most years, it also means that there is often too much water in some places, resulting in as much distress due to flooding as there currently is due to drought. So there is a spatial challenge as well - water from the surplus regions needs to reach those with a shortfall, and the water train deployed in Maharashtra is one attempt to achieve this.
Grand ambitions
The current crisis has led the Indian government to announce that it hopes to resurrect an ambitious plan to try and link the major river basins of the country, under the Interlinking of Rivers (ILR) Project. The scale and magnitude of this exercise, both financial (it is estimated to cost more than £100 billion) and in engineering terms (involving the transfer of 174 billion cubic metres of water annually) is unprecedented.
Fishing boats on the banks of the Brahmaputra river in Guwahati, Assam, India. EPA/Stringer
-- this post authored by Bhaskar Vira, University of Cambridge
India is facing one of its most serious droughts in recent memory - official estimates suggest that at least 330m people are likely to be affected by acute shortages of water. As the subcontinent awaits the imminent arrival of the monsoon rains, bringing relief to those who have suffered the long, dry and exceptionally warm summer, the crisis affecting India's water resources is high on the public agenda.
Unprecedented drought demands unconventional responses, and there have been some fairly unusual attempts to address this year's shortage. Perhaps most dramatic was the deployment of railway wagons to transport 500,000 litres of water per day across the Deccan plateau, with the train traversing more than 300km to provide relief to the district of Latur in Maharashtra state.
The need to shift water on this scale sheds light on the key issue that makes water planning in the Indian subcontinent so challenging. While the region gets considerable precipitation most years from the annual monsoon, the rain tends to fall in particular places - and for only a short period of time (about three months). This water needs to be stored, and made to last for the entire year.
In most years, it also means that there is often too much water in some places, resulting in as much distress due to flooding as there currently is due to drought. So there is a spatial challenge as well - water from the surplus regions needs to reach those with a shortfall, and the water train deployed in Maharashtra is one attempt to achieve this.
Grand ambitions
The current crisis has led the Indian government to announce that it hopes to resurrect an ambitious plan to try and link the major river basins of the country, under the Interlinking of Rivers (ILR) Project. The scale and magnitude of this exercise, both financial (it is estimated to cost more than £100 billion) and in engineering terms (involving the transfer of 174 billion cubic metres of water annually) is unprecedented.
Fishing boats on the banks of the Brahmaputra river in Guwahati, Assam, India. EPA/Stringer