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It has been observed that the Greenland Ice Sheet (GrIS) is going through the biggest outright drop in its "surface mass" since record-keeping began in 1948. Examine the reasons behind this shrinkage and its possible consequences.
Antarctica and Greenland are home to Earth's only two ice sheets. It has been observed that the Greenland Ice Sheet (GrIS) is melting at a much faster pace than before. As per researchers, the GrIS has been losing mass for several decades due to both increased surface meltwater runoff and ablation oRead more
Antarctica and Greenland are home to Earth’s only two ice sheets. It has been observed that the Greenland Ice Sheet (GrIS) is melting at a much faster pace than before. As per researchers, the GrIS has been losing mass for several decades due to both increased surface meltwater runoff and ablation of marine-terminating outlet glaciers via calving and submarine melting, termed ice discharge.
Reasons for this shrinkage include:
The consequences of this phenomenon are:
How much and how quickly the Greenland Ice Sheet melts in the future will largely determine the ocean level rise in the future. If emissions continue to rise, the current rate of melting on the Greenland Ice Sheet is expected to double by the end of the century. Alarmingly, if all the ice on Greenland melted, it would raise global sea levels by 20 feet. Thus, adequate measures need to be taken in this regard.
See lessLike earthquakes, the spatial distribution of volcanoes across the globe is well-defined in belts or zones. Discuss.
Earthquakes and volcanoes are natural phenomena and are closely linked with seismic events. An earthquake is caused by to release of energy along a fault in the earth's crust, which generates waves that travel in all directions. A volcano is a place where gases, ashes, and/or molten rock material laRead more
Earthquakes and volcanoes are natural phenomena and are closely linked with seismic events. An earthquake is caused by to release of energy along a fault in the earth’s crust, which generates waves that travel in all directions. A volcano is a place where gases, ashes, and/or molten rock material lava – escape to the ground. The spatial distribution of earthquakes and volcanoes shows a close relation between the two as indicated in the figure below: Most of the largest earthquakes that ever happened on Earth, were along the Circum-Pacific belt, which is also called the ‘Ring of Fire. After this, earthquakes have been more frequent in the Alpide or Alpine-Himalayan earthquake belt, which runs from Java to Sumatra through the Himalayas, the Mediterranean, and out into the Atlantic. The third prominent belt follows the submerged mid-Atlantic Ridge. The map of volcanoes also shows a similar pattern. They are distributed along three major belts or zones in the world, namely-
(i) Circum-Pacific belt: Also known as the ‘volcanic zones of the convergent oceanic plate margins’, it includes the volcanoes of the eastern and western coastal areas of the Pacific Ocean, of island arcs and festoons off the east coast of Asia and of the volcanic islands scattered over the Pacific Ocean. (ii) Mid-continental belt: Also known as ‘the volcanic zones of convergent continental plate margins’, it includes the volcanoes of Alpine mountain chains and the Mediterranean Sea and the volcanoes of the fault zone of eastern Africa. (iii) Mid-oceanic ridge belt: This belt includes the volcanoes mainly along the mid-Atlantic ridge which represents the splitting/divergent zone of plates. The spatial distribution of volcanoes and earthquakes show similarities as both events are closely linked with the Theory of Plate Tectonics, which explains the formation of convergent and divergent boundaries and the motion of plates. 
See lessThe present drainage system of the Himalayas is, to a great extent, the result of progressive river piracy. Discuss.
The diversion of the part of the course of a river by another river is called stream diversion stream/river capture or stream piracy. River capture is a natural process, which is more active in the youthful stage of the valley development because the streams are actively engaged in headward erosionRead more
The diversion of the part of the course of a river by another river is called stream diversion stream/river capture or stream piracy. River capture is a natural process, which is more active in the youthful stage of the valley development because the streams are actively engaged in headward erosion and valley lengthening but it can also occur during mature and senile stages of the valley development through the process of lateral erosion and meander intersection. The drainage system refers to the origin and development of streams and their channels through time. It is believed that the present drainage system of the Himalayas is the outcome of progressive river piracy during various stages of drainage development. Headward erosion has been the most active process of river capture in the Himalayas. River capturing has been a frequent phenomenon in the evolution of the present drainage system of the Himalayas which can be understood with the help of the following examples:
In the initial stage of their development, most of the streams and their tributaries are engaged in active headward erosion resulting in continuous creeping or shifting of water divides and lengthening of their valley thalwegs. The stronger and more powerful streams (in terms of channel gradient, stream velocity discharge, and kinetic energy) capture the upper courses of weak and sluggish streams.
See lessThe primary task for the founders of the Republic of India was not its economic development, but the socio-cultural integration of the people of India. Discuss.
The Indian economy, during the early years of independence, was characterised as under-developed (with a per capita income of INR 230), import dependent, having poor infrastructure, trapped in a vicious cycle of poverty and illiteracy etc. However, newly independent India was also facing grave conceRead more
The Indian economy, during the early years of independence, was characterised as under-developed (with a per capita income of INR 230), import dependent, having poor infrastructure, trapped in a vicious cycle of poverty and illiteracy etc. However, newly independent India was also facing grave concerns like maintaining the integrity and unity of the nation and consolidation of various regions of India in the background of its huge diversity. Thus, more than dealing with economic problems, the immediate task in front of its founders was to shape a nation that was united, yet accommodative of the socio-cultural diversities.
Challenges in socio-cultural integration of people of India:
This diversity could become a divisive tool, thus transforming India into a disruptive country along the lines of communalism, casteism, and regional exclusivity. To address these challenges and keep the country united, early governments adopted policies of territorial integration, promoting social justice, the preservation of India’s rich diversity, and the inauguration of a civil and libertarian polity.
See lessWomen revolutionaries made brave and unforgettable contributions to the freedom struggle in India. Discuss.
The history of the Indian freedom struggle would be incomplete without mentioning the contributions of women. They fought with true spirit and undaunted courage and faced various tortures, exploitation and hardships to earn us freedom. They also took charge of the freedom struggle at many instancesRead more
The history of the Indian freedom struggle would be incomplete without mentioning the contributions of women. They fought with true spirit and undaunted courage and faced various tortures, exploitation and hardships to earn us freedom. They also took charge of the freedom struggle at many instances when male freedom fighters were in prison.
The women revolutionaries and their contributions include:
Women revolutionaries made unforgettable contributions to the growth of militant nationalism in India. Apart from their role in revolutionary activities, women also called upon their countrymen and upon the British government the urgent need for social, economic, legal and political reforms to improve the lives of women in the sub-continent.
See lessDelineate the various Landslide Vulnerability Zones in India. Also, enumerate the measures that can be taken to mitigate the effects of landslides.
A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. Landslide Vulnerability Zones in India: Very High Vulnerability Zone: HighlyRead more
A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of “mass wasting,” which denotes any down-slope movement of soil and rock under the direct influence of gravity.
Landslide Vulnerability Zones in India:
Measures to mitigate the effect of landslides:
Landslide hazard is one of the more difficult ones to address, as it involves extensive risk analysis and geotechnical investigations, in addition to risk maps. For critical infrastructure, the non structural mitigation measures for reducing consequences such as warning system, evacuation plans, and restriction of construction should be given importance along with structural mitigation measures to reduce the impact on operational activity during such a hazard.
See lessWith initiatives within the SAARC not moving forward in the desired direction, BIMSTEC can be a vibrant alternative forum for regional grouping in South Asia and South-East Asia. Discuss.
Answer: In this dynamic world, India has focussed on a foreign policy, which incorporates a smooth conduct of regional relationships through multilateral partnerships enabling mutual cooperation and growth. South Asian Association for Regional Cooperation (SAARC), as an organisation, reflects the SoRead more
Answer: In this dynamic world, India has focussed on a foreign policy, which incorporates a smooth conduct of regional relationships through multilateral partnerships enabling mutual cooperation and growth. South Asian Association for Regional Cooperation (SAARC), as an organisation, reflects the South Asian geographical identity of the countries. However, since its inception in 1985, various initiatives within the SAARC are not moving forward in the desired direction due to various reasons, including:
In view of this, it is argued that Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) can be a better alternative forum for regional cooperation due to following reasons:
SAARC and BIMSTEC focus on geographically overlapping regions. However, this does not make them equal alternatives. SAARC is a purely regional organisation, whereas BIMSTEC is an inter- regional organization. They complement each other in terms of functions and goals. BIMSTEC provides SAARC countries a unique opportunity to connect with ASEAN. Further, the success of BIMSTEC does not render SAARC redundant, it adds a new chapter in regional cooperation in South Asia.
See lessEthics case study
Answer: The aforementioned case highlights ways in which a firm's business practices are inextricably linked to both tangible and intangible aspects. In the given case, a telecom major finds itself grappling with allegations of questionable business practices, thereby threatening its reputation amonRead more
Answer: The aforementioned case highlights ways in which a firm’s business practices are inextricably linked to both tangible and intangible aspects. In the given case, a telecom major finds itself grappling with allegations of questionable business practices, thereby threatening its reputation amongst both local and global markets.
(a) The challenges presented by the given situation are multi-fold ranging across both ethical and purely commercial aspects, including:
(b) The stakeholders in the given case include the following:
(c) As the Chief Executive Officer (CEO), my course of action must be informed by a keen understanding of the challenges involved and choosing the most appropriate alternative that addresses them. It will include the following:
Ethics case study
Answer: Although many nations have abolished capital punishment, over 60% of the world's population live in countries where executions take place, such as China, India, the United States and Indonesia, the four most-populous countries in the world. These nations have also consistently voted againstRead more
Answer: Although many nations have abolished capital punishment, over 60% of the world’s population live in countries where executions take place, such as China, India, the United States and Indonesia, the four most-populous countries in the world. These nations have also consistently voted against the UN General Assembly’s resolutions over death penalty. stently (a) Arguments in favour of capital punishment
Arguments against capital punishment
(b) Moral implications of capital punishment:
Vengeance arises out of someone’s hatred, anger, or desires typically aimed at another. There is no internal limit to the severity of that response. Also, the brutalisation impact of a capital punishment over the society is much wider than the deterrence it provides. A civilised society must be based upon humanitarian values, the focus of which should be on reformation and rehabilitation of a criminal rather than following the same path which he/she followed. Therefore, such punishments should either be completely avoided or must be inflicted only by the judiciary in the rarest of rare crimes.
See lessEthics case study
Answer: This case pertains to the issue of whether student politics should be allowed in colleges. One view is that student politics is necessary for raising issues of students before the colleges and also making future citizens of the country aware and interested about the political system of the cRead more
Answer: This case pertains to the issue of whether student politics should be allowed in colleges. One view is that student politics is necessary for raising issues of students before the colleges and also making future citizens of the country aware and interested about the political system of the country. While a contrary view sees student politics as only a platform for politicization of educational institutes which interferes with the academic functions of colleges. (a) Issues involved in this case are following:
(b) It is my personal belief that student politics is not good. This personal belief of mine is in contravention to my professional ethics which requires me to act as per the long tradition of college and conduct student elections provided they are indeed working for the benefit of students. In this situation, I can take following measures to separate my personal belief from interfering in my official role:
(c) As the Principal of the college, I have the responsibility of conducting the affairs of the college in a lawful and just manner and take effective steps to ensure that academic activities are not hampered by extraneous factors. While student politics per se is not undesirable, politicization of student unions in India has resulted in many undesirable consequences. Therefore, I will take following steps in order to balance the need of student politics vis-à-vis maintaining an effective academic environment in campuses:
A vibrant and politically aware student community is crucial to the furtherance of parliamentary democracy. However, student politics should be practised in such a way that campuses do not become turf wars for political parties of the country.
See less