Natural resources
All the resources that are available in nature that people use in order to meet their needs are called natural resources.
Everything that is used in nature is natural resources such as soil, water, air, plant and animal. There are some more under the soil and the ocean, such as natural gas, oil, coal, iron, limestone etc. There are various types of plants and animals here. Besides, sunlight is an important natural resource. Which is useful for food production.
Natural resources utilization and sustainable development
Today we face a terrible environmental disaster due to global warming, climate change, impact of greenhouse gases, ozone layer erosion, sea level rise, desertification, salinity enhancement, rainfall and decrease in forest cover. As a result of population growth and rapid economic development, there is widespread damage to the natural environment of the world.
By unplanned urbanization and industrialization, by wetting wetlands and depleting plants, soil, water and air, we are destroying the planet called planet in the name of development, it will not be fulfilled any day. Presently the population of the world is 730 million The rate at which the population is increasing, the population of the world will rise to 960 million in 2050. As the use of natural resources increases with population growth, ecosystem balance is also interrupted. In this way, the unplanned use of natural resources of the world and the trend of increasing production will require three planets like Earth to meet the needs of the future. World Environment Day-2013 is celebrated every year on 5th June. The purpose of this day is to increase the awareness of nature and the awareness of the environment. This year's theme for World Environment Day was: Natural resources utilization and sustainable development. Without the protection of the environment, no development in the world is sustainable. So to sustain the development, we must first think about the environment. That's why the 2015 World Environment Day slogan should be - the dreams of a hundred people, a world, do not be poor
With the publication of Rachel Carson's silent spring in 1959, the environment in the world fell apart. He said, "People are doing extremely harm to their environment without knowing its name in the name of development. The use of excessive chemical fertilizers and pesticides in the fields and the toxic waste of industries and industries, where they leave the environment, causes environmental damage to the beneficial plants and animals in a crisis situation. "Industry factories are spreading to the atmosphere by burning mineral fuel Amount of smoke and other toxic gases. As a result, the creation of the smoke, damaged forests and livestock of the pond. Most of the small-scale industrial factories are in the position of some water reservoir. The huge amount of toxic waste is being washed from these factories. These are poisoning by reducing the oxygen supply of water. Due to this, the water was seriously polluted and the fish and plants were killed by fish. On the other hand, excessive use of chemical fertilizers and pesticides is being used in crop fields. In this, the beneficial insects of the soil in the soil are destroyed and the fertile strength of the land is wasted. Besides, fertilizers and pesticides are being dissolved in irrigation water and rainwater in the pond. The environment, water and soil of these polluted substances are taking shelter through food and foodgrains, including plants, birds and other animals. As a result many diseases are being created and many species of plants and animals are being eradicated from the earth. So, the development of science-technology is not as much responsible for the deterioration of the environment, unplanned development without focusing on environmental consequences more than that.
In 1972, an international conference on 'human environment' was held in the Stockholm capital Stockholm in the United Nations initiative. At the conference, two main factors were identified for the deterioration of the environment. Because the two are - one. Unplanned financial development, exorbitance and waste in developed countries; Two Existence of poverty in developing countries After that in June 1992 in the city of Rio de Janeiro in Brazil, the 'Dhranti Top Conference' was held. The observation of the conference shows that it is not possible to recover the balance of the endangered ecosystem until the two problems are solved in the world of extreme poverty and extreme poverty. So maintaining the biodiversity of the environment is particularly important in achieving sustainable development and economic balance.
Scientists have observed that the amount of carbon dioxide and temperature of the atmosphere is increasing day by day due to increase in the number of forest-jungle destruction, unplanned industrialization and increasing number of engine-driven vehicles. Thus, due to the increase in the temperature of the earth, there is a great change in climate in the world. Bangladesh is the most affected due to the effects of climate change. In recent times natural disasters like Sierra, alea, erosion, frequent flooding are reminding us of a terrible event of the future.
To survive the natural disasters, we need to focus on protecting the environment. Necessary measures will be taken to combat the effects of climate change. Children should be aware of environment since childhood. To comply with personal family and social health policies. There is no need to put garbage in the soil pits and cover it. The use of water, electricity, coal, gas and fuel oil will be reduced as far as possible. The use of solar power will be increased. Food and other resources must be prevented. Every industry-factory must ensure the use of ETP. Increase the use of public transport instead of private cars. More forestry, fruit and herbal plants need to be planted and raised through service. Wildlife and rain water should be preserved. Emergency measures should be taken against filling flood-riverbed, re-excavation of canal-bills and closure of river pollution. There will be an urgent need for sustainable development of fisheries, livestock, poultry, forest resources etc. To reduce the use of pesticides, emphasize integrated pest management.
Besides, reducing the use of chemical fertilizers will increase the use of organic and microbial fertilizers. The factories should be set up in certain areas. With the development of each city's water and sewerage system, arrangement should be made from waste to power and organic fertilizers and also to develop planned green cities and green industries.
