Tackling worst drought in Tamilnadu

29/03/2017

If I am in power, I will take the following steps to over come the impact of drought,

  1. Not only remove all restrictions on digging bore wells but will also encourage and assist people to dig bore wells. Ground water level will go down but this does not matter, as when it rains the water level will automatically come up. Government will also dig bore wells near water bodies like lakes, canals etc.
  2. Wherever and whenever it is possible, artificial rain(cloud seeding) will be tried.
  3. Water areas like wells, rivers, lakes, canals, water passages will be dredged which may lead to more ground water
  4. farmers will be advised to refrain from planting crops like paddy which require a lot of water and cultivate drought resistant crops like ragi
  5. Without any elaborate application from farmers, their lands will be provided with drip irrigation system and sprinkler irrigation system.
  6. Panchayat, municipal and corporation waste water will be treated and used for irrigation.
  7. As a long term measure, desalination plants will be established along the coast.
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If were the Minister for Water Resources of a state in India

26/08/2016

If were the Minister for Water Resources of a state in India, I would:

a.Link the rivers in the state with each other and with lakes

b.Order removal of all karuvelam and other trees from all lakes

c.Deepen the lakes

d.Allow people to take soil newly deposited by the streams , thus dredging without any expenses for the government/panchayat

e.Remove all obstacles for rainwater draining in the lakes

f.Remove all restrictions in putting up bore wells as the water level will come up with lakes holding more water and for longer time with deepening of the same

g.Will remove limits/restrictions on putting up drip irrigation facilities

h.will set up research stations and encourage private research stations for research on refining technology to make artificial rain with a view to bring down the cost

i.Will set up artificial rain making facilities in all the districts

j.Will encourage studies on locating pure water along the sea coast, as it is believed that at a certain depth, pure water exists along the coast

k.Will set up research institutes on evolving sea salt resistant crops and take sea water into the land for irrigating salt resistant crops

l.Will set up research institutes to study the quantum of water prevented by trees from recharging the ground water, to understand how many more trees are to be planted or whether we have more trees than required

m.Set up desalination plants along the sea coast


Global Warming or Weather Extremes

17/09/2009

In the last few years, particularly in the last 3 -4 years, we get the news that several parts of the world had the hottest day in 50 years, 70 years or even in recorded history. This has led people to conclude that there is global warming and that the ice at the poles would melt, leading to the submerging of several island countries. The conclusion is incorrect.

During this same time period, we also read news that several parts of the world experienced the coldest day in several decades or even the coldest day in recorded history. This means that what we witness now is not global warming but rather weather extremes. While estimating the increase in the volume of sea water and rise in sea level, the following need to be kept in mind.

  1. When it is hot in the northern hemisphere, it is cold in the southern hemisphere. Thus the snow melting is restricted to just 50% of the area of snow
  2. When snow melts, the volume of the melted snow, i.e water comes down by around 10%.
  3. During summer, when snow melts and raises sea water level, there is substantial evaporation of sea water leading to lowering of sea water level. Evaporation has been calculated to be higher than the quantum of flow of river water into the sea.
  4. With increased use of surface water, the flow of water into the sea from the rivers is decreasing steadily.
  5. With increasing exploitation of ground water, seepage of seawater into the earth takes place, reducing sea water level.

Based on these points, the consequences of ”global warming” is not so alarming as is made out by some scientists or experts.

However, it has to be noted that the rivers bring into the sea not only water, but also mud, sand, salt and minerals which, get deposited into the sea, thus reducing the quantum of water which the sea can hold. Dredging to the extent possible, extraction of minerals, desalination of sea water for irrigation purposes as well as for other uses including industrial use would all serve to reduce sea water level.