http://blogs.economictimes.indiatimes.com/et-commentary/development-vs-environmental-security-how-to-kill-an-ecosystem/

Development vs environmental security: How to kill an ecosystem

July 11, 2016, 4:16 am IST Economic Times

*By Sukanta Chaudhuri*

Kolkata is flanked on the east by a vast tract of wetland. It has thrown up
a unique challenge in weighing development against environmental security.
At stake is the well-being, or even the survival, of a city of 4.5 million.

The East Kolkata Wetlands cover 12,500 hectares, including 4,000 hectares
of fish farms or bheris, criss-crossed by a system of creeks and canals.
Kolkata Corporation does not have any sewage treatment plant. The entire
sewage flows through these canals, purifying itself in the bheris that act
as oxidation ponds, and draining out through the Kultigong river towards
the Sundarbans.

The canals also absorb the city’s monsoon storm-water. Its garbage is
offloaded at nearby Dhapa to sustain market farms. The area yields 55,000
tonnes of vegetables and 10,500 tonnes of fish a year. Farming and
recycling sustain 20,000 families directly and some 50,000 indirectly.

If the wetlands are effaced, the loss in food supply would be the least
part of the damage. It would leave the city without means of disposing of
its waste, especially its sewage, and its abundant storm-water. Come
monsoon, and Kolkata might annually face the paralysis and health hazards
witnessed in Chennai last year.

Above all, we would destroy a unique eco-friendly system of waste disposal:
costing nothing, generating substantial production and employment and
ensuring an immense depolluting zone bordering the city. No other wetland
recycling system anywhere exceeds 100 hectares. Experts cross the world to
see Kolkata’s wetlands. But the city’s otherwise articulate population is
oblivious.

The apparent rural tranquillity of the wetlands is misleading. They have
always been prone to violence: earlier, to drain fisheries for ricefarming
or flood them back again. Today, the greatest danger is from realtors and
big-time encroachers.

[image: Untitled-1]
<http://blogs.economictimes.indiatimes.com/wp-content/uploads/2016/07/Untitled-17.jpg>

Don’t turn it into a dry state

On paper, the wetlands enjoy ample protection. A landmark high court
judgment of 1992 has been reinforced over time, culminating in
international recognition in 2002 under the Ramsar Convention. The
government and corporation have declared their commitment. Yet, 185 cases
of encroachment, including colleges and housing estates, have reached the
courts, and 14 eviction orders issued though not executed. One-off
administrative fiats have been equally destructive, in one case, reducing
the open land within aparticular tract from 43% to 3%.

Today, a still greater threat looms over the wetlands. Under a new
environmental regime, states will be free to form their own guidelines.
Bengal’s new environment minister, who is also mayor of Kolkata, has
declared his intention of ‘developing’ the wetlands and even having their
Ramsar status annulled. The Ramsar authorities might themselves delist
wetlands that cease to be such.

The mayor has arguments on his side. He is right in saying that the system
of solid waste disposal needs expansion. In itself, this would not alter
the land use pattern. It would allow scientific separation of wastes, so
that toxic matter does not contaminate the soil or water. It would require
only a small fraction of the land, and leave the water bodies untouched.

But the mayor also argues that the city-side segment of the wetlands, west
of Kolkata’s Eastern Bypass, is already a concrete jungle: why should the
rest be sacrosanct? That is like saying that a man who has lost three toes
might as well lose both legs.

The truth is that the wetlands are ‘real estate in waiting’, to quote
Dhrubajyoti Ghosh, a leading expert and crusader. Today, real estate
arguably constitutes West Bengal’s biggest industry, and 12,500 hectares is
a lot of land. No wonder the authorities are keen to open it for
development.

But first, they owe the citizens of Kolkata a few answers.

   - How will they dispose of 750,000,000 litres of sewage a day, not to
   speak of 2,500 tonnes of garbage? Funds might be obtained for sewage
   treatment plants on a gigantic scale. But besides the transitional and
   operational challenges, the sheer retrogression in terms of environmental
   management would be indefensible, with incalculable effects on citizens’
   lives and probably on climate change. The wetlands are a mini-biosphere
   with threatened and even unique species.


   - Where would they channelise storm-water during the monsoons?


   - In an alarmingly polluted city, what would happen if this carbon sink
   were replaced by urban settlements, not only removing but reversing the
   depolluting factor?


   - How would 50,000 families, often displaced from their land, find
   alternative livelihood? Battles have been fought on precisely this issue in
   West Bengal in the recent past.

These questions may not trouble fly-by-night realtors, but responsible
corporate stakeholders must address them. And they cannot but weigh upon
the city, state and Union governments; on everyone intending to live or
work in the space of the lost wetlands; and on every citizen of inner
Kolkata, who (all else apart) might be trapped without access to drainage
outfalls. Would Kolkata remain viable as a metropolitan space? What would
be the consequences for the state’s economy?

Crucial decisions about the wetlands might be taken soon and heavy pressure
brought to bear on the exercise. The parties most favouring the conversion
must realise that it would ruin their own interests along with all others.
They will have killed the goose yielding them a steady supply of golden
eggs.



*(The writer is Professor Emeritus, Jadavpur University, Kolkata)*
DISCLAIMER : Views expressed above are the author's own.


-- 
meher engineer



-- 
Peace Is Doable

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