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Positive and negative effects of coal
Positive and negative effects of coal
Positive and negative effects of coal
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Coal The scientific definition of coal is that it is a black rock composing of carbonaceous material and moisture content that gives large amount of heat on combustion. Coal is perhaps the most important fuel in power generation industry. One of the reasons is that it is able to produce electricity at much lower rate than produced by other fossil fuels. It is estimated that a power plant running on coal produces 3 times cheaper electricity than produced from a plant working on petroleum gases. Pakistan is blessed with enormous resources of coal in Sindh and Baluchistan. Perhaps it has one of the largest reservoirs of coal, especially in Thar. The coal reserves in Thar are 184.123 billion tons which makes Pakistan the fifth largest in the world. At current prices, this coal is worth over US$ 25 trillion. Other resources in Sindh are at lakhra, Jharruck, Badin and Indus East. The coal reserves in Baluchistan are located in Duki, Sor Range, Harnai, Mach, Ghamalomg-Bahlol, and Pir Ismail Ziarat etc. In NWFP the coal reserves are in Hangu where it is estimated to have over 50 million ton coal, however, the production is not at that scale. 230-250 million tons are potentially available in Punjab but production is less than half a million ton. Province Resources in Million tonnes Heating Value (Btu/lb) Sindh 184,623 5219-13555 Balochistan 217 9637-15499 Punjab 235 9472-15801 NWFP 91 9386-14217 AJK 9 7336-12338 These coal reserves are of great importance to Pakistan. As Pakistan is going through an energy crisis, these coal reserves might the answer to our situation. Load shedding up to 12 hours a day is an everyday affair. Pakistanis annually spends over US$ 600 million to import generators and UPS. Pakistan needs electricity. Renew... ... middle of paper ... ...od is therefore on the negative side. Pakistan spends about Rs. 1.75 billion annually on forest related material. Several processes can be done on raw materials obtained from forests in order to increase their value. The pulp wood can be processed to make paper and paper based products. The export of these products will enhance earnings through foreign exchange for Pakistan. Timber wood can be used to make furniture. Hardwood can be used in heavy mechanical industries in order to make tools and/or parts of mechanical machineries. The export of these products will bring foreign exchange to Pakistan. The medical herbs and seeds extracted from forests can be processed in pharmaceutical industries in order to make high quality medicines. Hence raw materials from forests can be converted into value added products which in turn can bring economic well-being to Pakistan.
Rukayah Aman. 1998. Rare and wild fruit of Peninsular Malaysia and their potential uses.InM.N.B. Nair, Mohd Harmami Sahri & Zaidon Ashaari, ed. Sustainable management of non-wood forest products. 14-17 October 1997. Serdang Putra Malaysia Press. Retrevied from http://www.fao.org/DOCREP/005/AB598E/AB598E18htm#3743
(Kumar et al., 2008a). Globally, 1.3 1010 metric tons of wood is produced by terrestrial
Coal is considerably one of the most important sources of energy in nature and is one the most significant sources for power generation worldwide. The excavation and importance of coal became mainstream and apparent during the Industrial Revolution of the 19th and 20th centuries.
Coal was the cutting edge of energy generation before any other source was extensively used. Wood, wind, water, and muscle power provided nearly all of the energy before the widespread adoption of coal. The greater energy density of coal provides a greater efficiency than these other methods of generating power; combine that greater efficiency with its ease of transportation and coal easily becomes the fuel of a nation. In its early days, coal was mined and consumed in England, a country short on wood and usable water power. This shortage in other areas left a gap that the relatively cheap coal could fill. Coal allowed for industry and manufacturing to grow and produce profits greater than almost any other industry. Coal gained its popularity mainly because it had an economic value in that it provided energy in quantities and in locations that were unobtainable and unreachable for the other energy sources at the time. This start in England led to momentum in ta...
Ulises Mendez ENL 3, SQ 2014 CRA 2 Tim Kreiner. Analysis of “Coal” by Audre Lorde. Audre Lorde’s poem has a very unique and intriguing name: “Coal”. Coal is the most widely used fossil fuel for energy production. Similarly, it is made up of the same thing as diamonds (which are a prominent metaphor throughout the poem) yet the two are strikingly physically different.
Taking wood from rainforests and old-growth forests is detrimental to the environment and society. However, it is possible for us to have sustainable wood if we make an effort.
However, with a scarcity of coal, more power would be generated from other sources like nuclear, solar and hydro. However, producing electricity from these sources for huge supply would be difficult.
The natural resource that I am writing this paper on is coal. Coal is a cheap, dirty fossil fuel which we burn to create power. Coal is the most abundant in North America and in Russia, including the area around it. China also has a fairly good amount of coal in it too. Coal, like all of the other fossil fuels is nonrenewable and will eventually run out, in the not so near future. Coal is very important to many of the countries of the world. The countries that use the most coal are China, the United States, India, Russia, and Japan. These five countries “account for 76% of total global coal use.” (World Coal Association, 2014).
This coupled with rising number of coal-fired power plants being set up in India to supply electricity for its vast population as well as India’s favorable geographical position towards Indonesia is evidence to Indonesia’s comparative advantage in the production and export of coal. Also, the domestic consumption of coal in Indonesia is relatively low. Therefore, the high national production along with high foreign demand leads to a scenario of larger
Burning and mining coal for fuel is harmful to the environment but because how cheap and easy it is to find many people are unwilling to give it up as a fuel source. One of the problems with coal is that they are limited and are non-renewable so once it has been used we won’t be able to use it again.
Besides traditional timber forest products, NTFP is another major resources from forests. Technically, NTFPs are defined as “all biological materials, other than timber, which are extracted from forests for human use.” These include rattan and other materials for craft making, forest fruits, resins, gums, medicinal plants and honey. Sometimes small animals and insects are also included. For instance, bamboo is extremely versatile, with over 1500 documented uses, and can in principle be used to replace anything made from timber. Important bamboo product categories include furniture and handicrafts; split-based products; flooring; mats, boards and veneer; housing and scaffolding; charcoal; fiber and textiles; etc. At the same time, bamboo plantations are highly suitable for erosion control, land rehabilitation, and wastewater treatment. Bamboo's rhizomatous root systems help bind soil while the evergreen cover provides valuable wildlife habitats.
from different parts of the country to learn about the different aspects of the forest and what qualities they maintain in order to preserve a sustainable forest • The Haliburton forest and Wild Life Reserve Ltd. adopted the goal of educating individuals in what makes a sustainable forest and the benefits that it holds so that this idea can be transferred to other people and hopefully endorsed by parks and forests across Canada and the globe • Haliburton forest and Wild Life Reserve Ltd. has demonstrated ways to keep their forest sustainable by finding little ways to re-use products in a productive and adequate manner • Biochar: After extensive work is done at the sawmill, an evident number of wood chips are left over. These woodchips are taken care of by being burned and put back into the forest soil to increase the productivity and growth of plants and to limit carbon emissions from entering the atmosphere and polluting the forest air and oxygen 7. Haliburton County and Nearby Urban
The coal mining has several disadvantages which not only limited to carbon di oxide emission but also affect the land, water, human health and other species life. Underground and opencast mining both have their tremendous disadvantages for environment and the society. Underground mining requires fire blast which has lined up severe situations like human safety and environmental pollution. These activities are also responsible for the displacement of the human beings, animals and other species hence it will disturb the ecosystem. In 2006, 30 million people displace which was 50% higher than the year of 1991. The coal mining also requires large amount of water from the nearby source and this waste and contaminated water generally disposed to some river and land. These activities affect the normal drinking water, underground/surface water and the minerals of lands. The large scale excavations, removal of surface soil, dumping chemical wastes, creation of road, cutting of mountains etc. all these actions causing severe impact on the land. The land deforestation is one of the most severe problems because it’s also related to the local people and animals. Number of species and animals rapidly got endangered from the past few years because of such activities.
Per year South Africa uses 1.3 % of the world’s total energy. South Africa’s main energy comes from coal, but one quarter of the coal we mine is exported to other countries. In 2009 71.1% of the total energy sources in South Africa were coal and hydroelectric energy had 0,1%. The one major reason hydroelectric energy in South Africa is so low is because this country is a water scarce one, which means that the hydroelectric power stations don’t have enough water to produce electricity efficiently. Eskom produces 95% of the electricity in South Africa and about half the electricity in Africa. Most of the electricity that is produced is from coal, but not all of it, other sources include gas, wind, hydroelectric and nuclear energy.
Pakistan is facing energy crises due to increase in demand, a poor management and lack of investment in our energy resources. Our energy needs depends upon oil and gas. We have to import about 30% energy in the form of crude oil, coal, LPG etc. [5]