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The Union Cabinet has okayed a five-year plan price over Rs 4,000 crore to discover the “deep ocean for resources and develop deep sea technologies for sustainable use of ocean resources”. India’s curiosity in finding out the deep ocean for assets dates again to the Nineteen Eighties and, because the nation pushes to enter this uncharted territory, three key themes emerge: assets, know-how and sustainability. Here’s why there may be nice curiosity in deep sea mining and what it will entail.

What Is Deep Sea Mining?


The a part of the ocean that lies beneath a depth of 200m is outlined because the deep sea, and the method of extracting minerals from this space is named deep-sea mining. According to International Seabed Authority, an company beneath the United Nations Convention on the Law of the Sea (UNCLOS) for monitoring all actions associated to mineral assets within the deep sea, the international seabed is the realm that lies past the boundaries of nationwide jurisdiction and represents round 50 per cent of the whole space of the world’s oceans.

What Are The Highlights Of India’s Deep Ocean Mission?

With its key goal being to assist the nation’s Blue Economy Initiatives, the Deep Ocean Mission has six primary goals, the Centre mentioned in a press release.

To start with, the mission will search to improvement the applied sciences required for exploring and, then, extracting, minerals within the deep seabed. As a part of this plan, India will develop a manned submersible that may “carry three people to a depth of 6,000 metres in the ocean with a suite of scientific sensors and tools”. Along with this, an built-in mining system can be developed to carry up mineral ores from the deep.

The mission may even drive the creation of ocean local weather change Advisory companies beneath which “a suite of observations and models will be developed to understand and provide future projections of important climate variables on seasonal to decadal time scales”.

A key element of the mission is pursuing technological improvements for exploration and conservation of deep-sea biodiversity by means of “bio-prospecting of deep sea flora and fauna… and studies on sustainable utilisation of deep sea bio-resources”.

When the thought is to mine minerals within the deep sea, there needs to be a correct survey of the place the deposits lie. Hence, the mission envisages deep ocean survey and exploration to “identify potential sites of multi-metal hydrothermal sulphides mineralisation along the Indian Ocean mid-oceanic ridges”.

Finally, the mission will search to discover the prospects of deriving power and freshwater from the ocean by means of “studies and detailed engineering design for offshore ocean thermal energy conversion (OTEC)-powered desalination plants.

The Centre said that “exploration studies of minerals will pave way for the commercial exploitation in the near future, as and when commercial exploitation code is evolved by the International Seabed Authority”.

What Kind Of Minerals Are Present In The Seabed?

According to the United Nations, there are three varieties of mineral deposits which are at current deemed appropriate for business exploitation. Key amongst these are polymetallic nodules that “occur throughout the ocean and are found lying on the sea floor in the abyssal plains, often partially buried in fine grain sediments”. These nodules comprise metals equivalent to manganese, iron, copper, nickel, cobalt, lead, zinc, and so forth.

Then there are polymetallic sulphides, that are also referred to as sea flooring huge sulphides or SMS, which are “rich in copper, iron, zinc, silver and gold”.

Thirdly, there are cobalt crusts that may be discovered at depths of between 400 and seven,000 metres and “are formed through the precipitation of minerals from seawater and contain iron, manganese, nickel, cobalt, copper and various rare metals, including rare earth elements”.

What Are The Challenges Of Seabed Mining?

In its assertion on the Deep Ocean Mission, the Centre famous that the “technologies required for deep sea mining have strategic implications and are not commercially available”. That means, India should develop indigenous applied sciences by way of collaboration with “leading institutes and private industries”. As a part of these efforts, the Centre mentioned, “a research vessel for deep ocean exploration would be built in an Indian shipyard” whereas focus would even be on the “design, development and fabrication of specialised equipment, ships and setting up of required infrastructure”.

The assertion additionally mentioned that “only a very few countries” have developed deep sea mining capabilities.

What Are The Environmental Costs?

According to the International Union for Conservation of Nature (IUCN), deep sea mining can have a deleterious influence on species that inhabit the bottoms of ocean, a lot of that are but to be found, in three fundamental methods.

First, by disturbance of the seafloor as machines concerned within the extraction of minerals “can alter or destroy deep-sea habitats, leading to the loss of species and fragmentation or loss of ecosystem structure and function”. Given that lots of the species occupying deep sea habitats are endemic, that’s, they aren’t discovered wherever else on the planet, “physical disturbances in just one mining site can possibly wipe out an entire species”.

Further, the motion of digging into the seafloor will “stir up fine sediments… consisting of silt, clay and the remains of microorganisms”, creating plumes of suspended particles which can choke animals or have an effect on how they feed.

There can also be the noise and lightweight air pollution to deal with in these components of the planet which are among the many quitest and most serene. IUCN says “species such as whales, tuna and sharks could be affected by noise, vibrations and light pollution caused by mining equipment and surface vessels”. There can also be the chance of accidents like leaks and spills of gas that would endanger deep sea life.

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