Various reports indicate that the average temperature values of the earth has in last decade shown increasing trend. As reported by Defence Research and Development Organisation (DRDO), the seasonal snow cover has been melting in the last few years, the same way it was in the past and it seems that effect is more pronounced on Glaciers. Geological Survey of India (GSI) and it seems that effect is more pronounced on Glaciers. Geological Survey of India (GSI) have reported that most of the glaciers of Himalayas as well as in the other parts of the world are receding and the recession of the glaciers may result due to subnormal snowfall, higher temperature during summer, less severe winter or a combination of all of them. The GSI has further reported that it may also be due to global warming a topic which is still debatable.
As per GSI, if the present scenario of receding glaciers is accelerated, there may be some reduction in the river discharge. However, it may be noted that the major part of the river discharge is contributed by snow fall and precipitation which is likely to go up with global warming. More melting of glaciers will generate more water initially. Hence there is no likelihood of northern rivers drying up in the near future.
This information was given by the Minister of State in the Ministry of
Water Resources Shri Jai Prakash Narayan Yadav in a written reply to question by Smt. Maya Singh :in the Rajya Sabha today.