May 242013
 


Sustainable development is necessary for the maintenance of the environment. The purpose of development work is people’s welfare. The target of development work is never achieved effectively if the adverse effects that are produced while carrying on the work, are ignored. The efforts of development are unsuccessful. The importance of sustainable development are described below:

  • Appropriate use of resource: Sustainable development teaches people to make less use of means and resources. The use of mineral oil, drinking water, insecticide, chemical fertilizers, and forest products should be minimized. There is should be no waste of the resources. This will lead to the minimum use of means and resources for maximum benefit. The means and resources should not be wasted. They help to conserve and promote the environment.
  • Sense of Responsibility: Sustainable development brings about changes in people’s knowledge, skill and attitude. It awakens the responsibility to use and preserve the natural resources like mine, forest, land, sea-fish, herb etc. It creates the feeling that natural resources are the common property of all and nobody can use the property according to his personal will. It helps to conserve natural and social environment.
  • Development of Basic Infrastructures: Sustainable development gives importance to the progress of health, education, agriculture, tourism and social reform for the development of human beings. While making progress in these aspects, environmental conservation and promotion should be conducted ahead in an integrated way.
  • Development based on Public Participation: People’s participation is to be given priority in development work in order to achieve the aim of sustainable development. It creates the interest of local people in development work and environment conservation. In this way, sustainable development increases the participation of people of all levels in environment protection and promotion.
  • Determination of the Limit of Development: Limited but effective means and resources are enough for the people to satisfy their basic needs; however, they do more development works due to greed. Limited and non-renewable means and resources go on decreasing in the world due to exceeding utilization. Development works should be done as far as the earth can bear. Sustainable development awares the people involved in the policy-making about the concept of limit of development.
  • Long-term Vision: Sustainable development has presented the goal of economic and social development without destroying the earth’s means and resources. It attempts to create the concept of maintaining the present work for future and conserving the natural resources for the future generation. In fact, sustainable development helps to think of protracted development and makes contributions to environment conservation.
May 222013
 

Agriculture plays a vital role in the economic and social development of the country. Therefore, agricultural development is necessary in our country. But agricultural development alone cannot bring the required development. Industrial development, too, is as indispensable as agricultural development. So, different types of industries must be established.

Industrial development is the backbone of the country’s progress. It supports economic and social development. But it brings on a number of adverse effects. Some of the effects and measures to check them are given below:

  • Utilization of Natural Resources: One of the essential factors to establish and run industries is raw materials from which readymade goods are manufactured. Iron, gold, silver, tin, coal, mineral oil, stone, jute, tobacco, sugar-cane, wood, bamboo etc. are raw materials. Non-renewable raw materials should only be used wisely because they are found in limited quantity. If they are exhausted, they cannot be produced again. It affects the environmental balance. Raw materials produced from forests and agriculture can be used at a large-scale. Nevertheless, renewable raw materials should not be used indiscriminately. When fruits, herbs, flowers are used the plants should not be destroyed. In the deforested places, trees should be planted.

  • Pollution: Brick and tile kilns and cement factories give off air-pollutants like carbon dioxide, sulphur oxide, dust, smoke etc. and air is polluted and the physical environment of the surrounding area is spoilt. Factories discharge chemical-mixed water, sewerages carry sewage. They pollute the watersheds. Pollution harms the health of all creatures including man.
  • Sound pollution is high in the urban areas and thick settlements. It affects settlements as well as living beings. Smoke, dust, poisonous gas should be controlled by applying low polluting devices.

  • Solid Wastage: Industries produce solid and liquid waste materials. The garbage that leather tanning factories, metal factories and sewerages discharge contain poisonous chemicals. The water that comes from these centres and the dumping site is polluted and makes the environment degraded. Bad smell comes from such places. The aquatic and terrestrial creatures are badly affected. Polluted water is the cause of spreading several kinds of diseases such as diarrhea, typhoid and cholera. Solid wastes emitted from leather and bone industries are harmful to living beings. Water coming from industries should be purified before discharging it into the sources of water.
  • Depletion of Ozone Layer: The accretion of sulphur dioxide, carbon dioxide, methane, and dust in the atmosphere depletes the ozone layer which blocks the harmful radiant heat coming from the sun. When the ozone layer is destroyed, the radiant heat reaches the surface of the earth. It disturbs the life-cycle of living beings. It causes dreadful diseases like cataract, skin diseases etc. To reduce this effect, afforestation should be started.
  • Excessive Use of Land: Farmers use fertilizers and insecticides excessively to increase their agricultural products. They do so because they want to sell the agricultural products for industry. The uncontrolled use of fertilizers destroys the fertility of the land. The chemicals coming from factories mix with water and cause water pollution. All living beings including man, have to face the adverse effects of polluted water. It is essential to develop the concept of sustainable agricultural production in farmers. It will be helpful to agriculture.
  • Change in Temperature: Gases like sulphur dioxide, carbon dioxide, methane are quite harmful. They pollute the air. The atmosphere is polluted too. One of the harmful effects of these gases is that they increase atmospheric temperature. This change in temperature exerts adverse effects on climate and water cycle. The result is that the environment loses its original quality. Such unhealthy environment is very harmful to human beings, organisms and vegetation. Therefore the emission of such gases should be controlled. For this, modern technology and other appropriate mechanism should be used.