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What is carbon sequestration. How can it be done by an artificial sequestration sink ?

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 What is carbon sequestration. How can it be done by an artificial sequestration sink ?

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 Anonymous
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Posted by: @newadmin

 What is carbon sequestration. How can it be done by an artificial sequestration sink ?

Carbon sequestration is the process of capture or stable the excess amount of carbon dioxide from the atmosphere to inverse the climate change or to reduce global warming.

Three ways to capture the excess carbon dioxide from atmosphere.

1.terrestial sequestration. In this plants absorb or capture carbon dioxide through a process of phtotsynthesis,and when plants died or decompose ,then carbon deposit in the soil,that is the reason,we need to plant more trees for carbon sequestration to reduce global warming.

2.geological sequestration.in this process we can capture the carbon dioxide or deposit it from where we extract the fossil fuels and crued oil.when we extract the cruel oil so that place become empty so we deposit that captured carbon through some types of technology .

Like in company chimneys we can do to trap the carbon and other gases from that chimney and remove the carbon from other gases and then transport that carbon and deposit it in place of crued oil

3.marine sequestration.in this process phytoplankton do photosynthesis and they capture carbon,and when they died they decompose and carbon stored in the sediment of surface water and stored it for long time.

And different other ways to mitigate it by shifting to electric vehicles use of more solar pumps instead of diesel engines,use bs6 fuel.

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 Anonymous
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It is very difficult task for the companies to use artificial sequestration because its cost is to high .firstly trap the carbon and other gases and then separate carbon from it so it is to complex and costly process.but to save environment we should go towards it

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(@rymish)
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Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one of the method of reducing the amount of Carbon dioxide in the atmosphere with the goal of reducing global climate change. It occurs both naturally as well as a result of anthropogenic activities and refers to the storage of carbon.                    METHODS OF CARBON SEQUESTRATION                                    1.NATURAL CARBON SEQUESTRATION- It is the process by which  nature has achieved balance of CO2 in our atmosphere for sustaining life. Animals expel it and as do plants during the night.                                                               2. ARTIFICIAL CARBON SEQUESTRATION-

1.Artificial carbon sequestration refers to a number of processes whereby carbon emissions are captured at the point of production (eg:- factories, chimneys )and then buried.                      2. Other method is where carbon dioxide is injected deep into the ocean forming lakes of CO2. In theory Carbon dioxide will stay down deep due to the pressure and temperature of the surrounding water dissolving that water over time.       3. Other is geological sequestration where carbon dioxide is pumped into underground chambers such as old oil reservoirs aquifers and coal seams that are unable to be mined.        CHALLENGES OF ARTIFICIAL SEQUESTRATION ARE:-                       1.Lack of carbon removal technologies. 2. High cost of carbon removal technologies as they are too expensive for widespread use.                                 3.Environmental causes as ocean acidification etc.                                     Future possibilities for Artificial carbon  sequestration:-                                       

  • Faster Sequestration:
    • Natural sequestration is a slow process compared to artificial sequestration. Thus it can complement natural sequestering to achieve goals which are necessary to fight climate change.
  • Increase in Productivity:
    • Enhanced agricultural yield and better oil recovery as a result of stored carbon in underground chambers such as old oil reservoirs, aquifers and coal seams.
  • Employment Generation:
    • This new and emerging field is attracting private players and venture capitalists, which in turn can help in employment generation.                          

                    

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Carbon sequestration is the process of long-term capture or removal of carbon from the atmosphere and its storage in one or other form. It can be done in both natural and artificial manner.

IPCC in its special report has said that the rise in temperature of Earth has already exceeded the 1 degree limit of pre-industrial levels (in 2017). Thus, creation of carbon sink using natural methods like by increasing forest cover won’t be sufficient and support of artificial methods would become a necessity.

Various methods that can be applied for sequestration of carbon are:

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1.Terrestrial methods: It includes creation of carbon sinks in forests, wetlands, peartland, soil based methods, agriculture,etc.  

2.Geological sequestration: which involves steps to store carbon in deep geological vents or in emptied oil reserves, gas reserves, slaine formations or shale formations via hydraulic fracturing,etc. 

3.Oceanic sequestration: carbon sink is created in the ocean water by processes like iron fertilisation, storage in biological systems like phytoplanktons and storage in deep oceanic vents.  

Sequestration of carbon is very important to achieve Under2Target of Paris climate deal. As per IPCC, 400 mn tonnes of carbon is to be captured by 202s, for this to happen. Thus, carbon capture would be the significant step in the direction of curbing issues like global warming and climate change- to make earth a better place to live in.

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(@shubhra21)
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Carbon dioxide is the most commonly produced greenhouse gas. Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change.It is the long-term storage of carbon in plants, soils, geologic formations, and the ocean.Carbon sequestration occurs both naturally and as a result of anthropogenic activities and typically refers to the storage of carbon.

Recently,it has been in news as there has been increasing investments to develop technology in the field of carbon sequestration and fight the menace of climate change.

As global warming accelerates and society continues to emit greenhouse gases,the idea is gaining of investing in artificial techniques of carbon sequestration.According to the Intergovernmental Panel on climate channge,nations may need to remove between 100 billion and 1 trillion tonnes of carbon dioxide from the atmosphere this century to avert the worst effects of climate change,far more than can be absorbed by simply planting more trees.

TYPES OF CARBON SEQUESTRATION:

  • Terrestrial Carbon Sequestration
  • Geologic Carbon Sequestration
  • Ocean Carbon Sequestration

METHODS OF CARBON SEQUESTRATION:

  • Natural Carbon Sequestration
  • Artificial Carbon Sequestration

(i) Artificial carbon sequestration refers to a number of processes whereby carbon emissions are captured at the point of production(eg. Factor Chimneys) and then buried.

(ii) One proposed method is ocean sequestration whereby carbon dioxide is injected deep into the ocean,forming lakes of carbon dioxide.In theory,the carbon dioxide will stay down deep due to the pressure and temperature of the surrounding water,gradually dissolving into that water overtime.

(iii) Another example is geological sequestration where the carbon dioxide is pumped into underground chambers such as old oil reservoirs,aquifers and coal seams that are unable to be mined.

CHALLENGES OF ARTIFICIAL CARBON SEQUESTRATION:

  • Lack of technology
  • High cost
  • Environmental concerns

(i) A growing number of corporations are pouring money into the so-called engineered carbon removal techniques.However,these technologies are at a nascent stage and need an overhaul to be exploited.

(ii) Carbon removal technologies remain too expensive for widespread use.Artificial carbon sequestration is costly,energy intensive,relatively unntested and has no other side benefits.

(iii) Carbon dioxide may be stored deep underground.Reservoir design faults,rock fissures and tectonic processes may act to release the gas stored into the ocean or atmosphere leading to unintended consequences such as ocean acidification,etc.

POTENTIAL OF ARTIFICIAL CARBON SEQUESTRATION:

  • Faster Sequestration
  • Increase in Productivity
  • Employment Generation

(i) The IPCC Special Report,Carbon Dioxide Capture and Storage,concluded that 'available evidence suggests that it is likely that there is a technical potential or atleast about 2000 Gt carbon dioxide of storage capacity in geological formations.'This is a large number indicating the potential of CCS to be a significant carbon dioxide mitigation strategy.

(ii) Carbon sequestration can assist significantly in maintaining the natural carbon cycle.Therefore,requirement is that we need to implement this practice properly.There is a need to go for natural sequestration first,thus conservation of existing forests and more and more reforestation is required.Later on,this mechanism can be installed in every thermal power plant so that carbon emission can be managed at its point source.

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(@abhinaymehta)
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Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change.

This action is very important for the fight against the greenhouse effect, caused by the excess of carbon dioxide in the environment, from the burning of fossil fuels and deforestation, among other harmful human activities.

However, to carry forward carbon sequestration successfully we need carbon sinks which are very important for our environment because they act like sponges to soak up the carbon compounds that are playing such an enormous role in global climate change. Basically, carbon sinks are holding tanks for carbon or carbon compounds, like carbon dioxide (CO2).

 

Artificial carbon sinks can be created or use existing underground formations, or even the oceans, to store CO2. The main artificial sinks are landfills and carbon capture and storage processes.

Below are few more ways how we can achieve Carbon sequestration via artificial methods:

  • Capturing and CO2 and storing it by injection into the ocean floor or underground empty rock formations that used to hold fossil fuels, like depleted oil reservoirs.
  • Replicating the natural process of mineral carbonation that uses CO2 to transform natural minerals into carbonate rocks like limestone.
  • Stimulating the growth of microorganisms in the southern oceans by fertilizing the surface with iron.
  • Manufacturing “artificial trees” complete with leaves treated with chemical compounds (like sodium carbonate) that soak up CO2 from the atmosphere.
Carbon is an essential element of life, and the carbon cycle is a critical process for our Earth. Carbon sinks play a primary role in the global carbon cycle and are vital to the world and every living, breathing being that is in it. They control the amount of carbon concentration that is found in our environment and keep our lives healthy and the air that we breathe worthy of breathing in.
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(@anushka)
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What is Carbon Sequestration?

Carbon sequestration is the process of capturing produced carbon dioxide and subsequently storing it safely, away from the atmosphere. It is a method that reduces the amount of carbon dioxide in the atmosphere, aiming at reducing global warming and climate change. It also aims at stabilizing the amounts of the greenhouse gas concentration in the atmosphere, and reducing the human ‘carbon footprint’. It is a natural occurrence but could also occur as a result of anthropogenic activities, which also see carbon being stored from becoming carbon dioxide gas.

  • Clearly defined, how carbon sinks remove carbon dioxide(CO2) from the Earth’s atmosphere is called carbon sequestration.
  • Importantly, carbon sequestration is both a natural and artificial process by which carbon dioxide is removed from the Earth’s atmosphere and then stored in liquid or solid form.
  • It is a process of capture and deliberate, whether natural or artificial, storage of CO2 over a long period of time. The initial purpose of doing this is to delay global warming and avoid extreme climate change.
  • It is also important to note that other forms of carbon, not just CO2 are stored during this sequestration process.
  • A more scientific explanation (an example) is; the removal and storage of carbon from the atmosphere to sinks – oceans, soil, forests – through physical means and the natural process best known as photosynthesis.
  • There is one positive trend in carbon sequestration. While large areas of forests have been cleared over the years, today humankind is still making concerted efforts to grow more forests to invigorate carbon sequestration.

Carbon dioxide is a greenhouse gas which means it traps heat in the atmosphere and is a result of both human and natural activities. Natural or biological carbon dioxide can come from decomposing organic matter, land-use changes, and forest fires, while man-made carbon dioxide can come from energy-generating processes such as burning coal, oil, and natural gas. A build-up of carbon dioxide and other greenhouse gases causes the trapping of heat within the atmosphere, contributing to climate change. As such, learning how to capture and store carbon dioxide can be crucial in fighting climate change. Before addressing how the process works, it is vital to understand carbon and carbon dioxide. Despite what you might think, carbon is life. It is a chemical element that is a basic building block of biomolecules and exists on earth in both solid, dissolved, and gaseous forms. For instance, carbon is in graphite and diamond, and when combined with oxygen molecules, it forms the gaseous carbon dioxide gas.

In other words, carbon sequestration means capturing the carbon dioxide (CO2) produced from new and old coal-powered power plants and large industrial sources before it is released into the atmosphere. Once captured, the CO2 is put into long-term storage either by storing it in carbon sinks (such as oceans, forests, or soils) or underground injection and geologic sequestration into deep underground rock formations.

How Does Carbon Sequestration Work?

one of the technologies discussed by policymakers, engineers, and scientists is carbon capture and storage (CSS). It is a geoengineering process where carbon dioxide is first separated from other gases contained in industrial emissions. It is then compressed and transported to a location where it is safely isolated from the atmosphere for long-term storage. CSS typically refers to the capture of carbon dioxide at its direct source of emission before releasing into the atmosphere, but may also refer to techniques used to remove carbon dioxide from the air, like the use of scrubbing towers and ‘artificial trees’. Once the carbon dioxide is captured and transported, it can also be stored in other suitable locations such as geological formations like deep saline formations. These are sedimentary rocks whose pore spaces are saturated with water containing high concentrations of dissolved salts. The carbon dioxide may also be stored in depleted oil and gas reservoirs or the deep ocean.These locations are in such a way that the carbon dioxide, once released there, would be used constructively than it would have, had it been released in the atmosphere. For instance, carbon sequestration in the ocean means the plankton at the ocean surface will convert the carbon dioxide, through photosynthesis, into oxygen, much like the trees and land plants do on land

Types of Carbon Sequestration

1. Biological Carbon Sequestration

2. Geological Carbon Sequestration

3. Technological Carbon Sequestration

4. Industrial Carbon Sequestration

CARBON SINK

A carbon sink is a natural or artificial reservoir that accumulates and stores some carbon-containing chemical compound for an indefinite period. The process by which carbon sinks remove carbon dioxide (CO2) from the atmosphere is known as carbon sequestration.

Examples of Natural Carbon Sinks

Artificial Carbon Sinks

Man-made carbon sinks can be created or use existing underground formations, or even the oceans, to store CO2. The main artificial sinks are landfills and carbon capture and storage processes. Artificial carbon sequestration is a good example of man-made carbon sinks. Maybe you’ve heard of clean coal? Well, the idea behind clean coal is capturing the CO2 that coal-fired power plants produce and basically burying it, or sequestering it, forever.

Much research is going on in this area, including:

  • Capturing and CO2 and storing it by injection into the ocean floor or underground empty rock formations that used to hold fossil fuels, like depleted oil reservoirs.
  • Replicating the natural process of mineral carbonation that uses CO2 to transform natural minerals into carbonate rocks like limestone.
  • Stimulating the growth of microorganisms in the southern oceans by fertilizing the surface with iron.
  • Manufacturing “artificial trees” complete with leaves treated with chemical compounds (like sodium carbonate) that soak up CO2 from the atmosphere.
 
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