Greenhouse Gas Emissions in House Construction

Greenhouse Gas Emissions in House Construction Background and Justification of project Buildings are climate modifiers which provide indoor environments. These are essential to the well being and the social and economic developments of mankind. However, they are also intensive resources consumers and hence, they require enormous amount of materials and energy in their construction and maintenance. During the construction period and while they are demolished at the end of their life, buildings generate huge amount of solid wastes and various types of emissions, such as particulates, noise and various kinds of liquid effluents. According to Hall (2003 ) and Anink (1996) the building industry accounts for around one-tenth of the world’s GDP, at least 7% of its jobs, half of all resources used and up to 40% of energy used and green house gas emission. Hill and Bowen (1997) discussed how the applications of modern technology, together with the increasing population, are leading to the rapid depletion of the earth’s physical resources. Hall (2003) also estimated that by 2025, the world population would reach 8 billion and 98% of the increase in the population would be in developing countries. With time, the construction industry is expanding and the rate of resource depletion is not sustainable. As it can be imagined, construction materials and products are essential to life – with respect to both buildings and infrastructure. Humans spend around 80% of their time (on average) in some type of building or on roads. Construction products play a major role in improving the energy efficiency of buildings and also contribute to economic prosperity (Edwards, 2003). On the other hand, construction products also produce a considerable impact on the environment. The Worldwatch Institute estimates that 40% of the world’s materials and energy is used in buildings. However, according to Anink (1996), the construction sector is responsible for 50% of the material resources taken from nature and 50% of total waste generated. Also, Rodman and Lenssen (1993) pointed that buildings account for one-sixth of the world’s freshwater withdrawals, one-quarter of its wood harvest, and two-fifths of its material and energy flows. The impact of construction products relative to t he overall lifetime impact of a building is currently 10-20%. For infrastructure this value is significantly higher, greater than 80% in some cases. In Mauritius, nearly all the main resources in a building are imported, e.g. steel and cement. An average of 600 000 tonnes of cement are imported annually in Mauritius. As our country is currently going through a boom in the construction sector, the figures are expected to increase. The price of crude oil has more than  doubled on the world market during the past years. This has had a direct impact on nearly all the construction materials which are imported and produced locally. While choosing for construction materials, many do not think about the impacts that the material have on the environment. The environmental impacts of building materials are increasing day by day. Therefore, environmental impacts have become an increasingly important consideration in selecting building materials for the construction. Consequently, life cycle assessment has become an important tool in analysing natural resources and emissions generated in manufacturing processes. Winistorfer and Zhangjing (2004) said that life cycle assessment refers to the analysis of the environmental impact of a product through every step of its life. It includes environment impacts while the product is manufactured, used and disposed. The objective of a life cycle analysis is to quantify environmental influences of a product through input and output analysis. Aim and Objectives The aim of the project was to calculate all the resource energy and associated greenhouse gas emissions linked to construction of a typical residential house in Mauritius. Simapro Life Cycle Analysis software was used to calculate all the resource energy and greenhouse gas emission from the building. The objectives were to: quantify all the resources required for the construction of the typical residential house estimate the weight of the building minimise the use of resources in building thereby reducing the greenhouse gas emission and ensuring a cleaner production. To satisfy the aim and objectives of the project, a virtual house was selected to carry out the analysis. The house used was obtained from the central statistics office. It represents the most common type of building in Mauritius. The size of the house is 128m2. All the quantities of materials used for the construction of the building were calculated. Using Simapro life cycle assessment software, the energy requirement and CO2 emission of each material was obtained. Also, the weight of the house was calculated using the unit weight of reinforced concrete and concrete blocks. Structure of Report A literature search was done and the findings were included in chapter 2. The latter describes how the building consumes all the different resources, energy requirements and the environmental impacts of building. Also, the benefits of sustainable building and of recycling waste, in order to recover the energy, were discussed. A detailed methodology, which was adopted to achieve the aim and objectives of the study, was described in chapter 3. The key results and discussions were presented in chapter 4. Finally, conclusions, recommendations and further works were dealt with in chapter 5. Literature Review Building: direct consumption of resources There is growing concern that human activity is affecting the global and local ecosystem severely enough to potentially cause permanent changes to some ecosystems  and potentially cause them to crash. Boyle (2005) suggested that there must be a reduction factor of 20 to 50 in resource consumption and efficiency in order to achieve technologies which are sustainable. Sustainable technologies will be particularly significant to the construction industry which is a major consumer of resources. The pie chart below gives a repartition of all the primary materials resources used in the construction industry in 1998. Figure 2.1 Repartition of primary resources in the construction industry (Source: Construction Resource Efficiency Review, 2006) Despite the fact that every house makes use of different quantity of resources, according to US DOE Energy Efficiency and Renewable Energy Network, a standard wood-frame house uses 4047 m2 (one acre) of forest and produces 3-7 tonne of waste during construction. Lippiatt (1999) stated that building consumes 40% of the gravel, sand and stone, 25% of the timber, 40% of the energy and 16% of the water used globally per year. Boyle (2005) estimated that in UK itself, about 6 tonnes of building materials were used annually for every member of the population. Much of the waste and consumption of resources occurred during the extraction and processing of the raw materials. For example, mining requires water and energy, consumes land and produces significant quantities of acidic contaminated gas, liquid and solid wastes (Boyle, 2005). A second example which can be used is that of timber. The cultivation of trees requires significant space for cultivation and amount of fertilizers. Moreover, the harvesting and processing phases of timber make use of considerable amounts of energy. Trees are also grown in plantations which require old-growth forest and significantly reduce biodiversity. Energy is also used extensively in the transportation of raw materials. Fossils fuels are used for the transportation, extraction and harvesting of the material, thereby releasing greenhouse gases and a range of air pollutants. Processing of metals and mineral often results in major gas emissions. The concrete industry is a major producer of carbon dioxide whereas on the other hand, aluminium smelting produces perfluorocarbons (Boyle, 2005). These two are very powerful greenhouse gases. According to the Construction Resource Efficiency Information Review (2006), emissions to the air by the construction industry in 1998 were just over 30 million tonnes in total, of which over 97% was carbon dioxide. Of the 30 million tonnes of emissions, over 70% came from mineral extraction and product manufacture. The table below shows the total carbon dioxide equivalent emissions generated by the construction industry in UK. Table 2.1 Carbon dioxide equivalent emissions generated by the construction industry in UK (Source: Construction Resource Efficiency Information Review, 2006) Emission generated by: Tonnage (Kt ) Mineral extraction, product and material manufacture 19,817 Transport of product and material 2,543 Transport of secondary and recycled product 675 Construction and demolition site activity 3,764 Transport related to construction and demolition site activity 1,291 Transport of waste from product and material manufacture 20 Transport of construction and demolition waste 219 Total CO2 equivalent emissions to the atmosphere 28,327 As it can be seen, from Table 2.1, a total of 28 327 Ktonnes of CO2equivalent emissions were generated by the construction industry in UK and much of these emissions occurred during the mineral extraction and product and material manufacture. Over the lifespan of a building, the material will have to be maintained and stored in good condition whereas, in some cases, replaced. Every five to fifteen years, exterior coatings, guttering, piping, walls, and flooring will require repair or replacement. By effective maintenance, requirements for replacement are reduced by a significant amount. The decisions here are not taken by the builder or designer regardless of the original design. Concerning  the material used for the repair and the maintenance of the building, it is the owner who takes the decision. During the lifespan of a building, the overall investment of resources into the building needs to be considered (Boyle, 2005).  Buildings can be constructed and designed in such a way that they can last for more than hundred years. Additionally, many traditional buildings are designed in such a way that they can last beyond 200 years (Morel, 2001). However, many designers are now planning buildings for a lifespan of only 50 years or even less despite using durable materials requiring minimal maintenance. Such materials reduce the requirement for repairs or replacement. Hence, simply designing and maintaining a building for 400 years  rather than 50 can potentially reduce its environmental effect from material resources by up to a factor of 4 (Boyle, 2005). Energy requirements of a building Cole and Carnan (1996) found that the energy that is consumed during the life cycle of a residential building includes energy used in producing building materials and constructing the structure. Also, energy is used in occupying and maintaining the building, and in demolishing or deconstructing the structure at the end of its serviceable life. According to Cole and Carnan (1996), the energy consumed in building can be classified in three categories: energy to initially produce the building; energy to operate the building, and; energy to demolish and dispose of the building at the end of its effective life. During the extraction, processing and transportation of material as well as during the construction as mentioned earlier large amount of energy is consumed. Morel et al. (2001) found that costs could be reduced by more than a factor of 6 during construction by the use of energy of local materials. The local materials studied by Morel et al. (2001) included rammed earth, stone, timber which were compared to the use of imported concrete. Consequently, Morel et al found that the imported concrete required significant energy for processing. Treloar et al. (2001) found that, by using a concrete binder, rammed earth had an energy load equivalent to that of a brick veneer construction due to the energy  required in processing the cement. Boyle (2005) stated that energy is the major resource consumed in buildings and 90% of the energy consumption is over the operational lifespan of the building. Therefore, significant decrease in energy consumption assists in reducing the resource consumption and improving efficiency. Although a house can be designed to a totally self-sufficient condition for energy and water, much depends on the location, that is, the climate, the availability and potability of  local water sources as well as the attitude of the user. The designer or builder can incorporate some energy saving devices and design such a water heater, passive heating, and composting toilets, which are suitable for local conditions. Furthermore, such devices and designs will only be incorporated if a significant profit can be generated. Many developers resist including energy- saving measures unless they are required by local councils or are considered essentially by buyers in the local community. Cole and Kernan (1996 ) found that the energy used to heat, cool, provide artificial lighting, and power typically used appliances in buildings accounts for more than 30% of Canada’s national energy use. Approximately two-thirds of this consumption is attributed to residential buildings and the remainder to commercial buildings. The US DOE Energy Efficiency and Renewable Energy Network estimated that, the annual average energy consumption for one story concrete building, the annual average energy consumption is 63GJ. However, Zydeveld (1998) pointed out that up to 80% savings in heating water and improving the indoor air quality and thermal comfort could be made in the Netherlands with the inclusion of passive solar design with an additional 10% cost in construction. Therefore, savings of 90% could be achieved. Four major design principles enabled architects and builders to incorporate passive solar design  into their buildings: solar  orientation; maximizing the solar gain through low surface loss and high internal volume; high mass within the insulation and avoiding of shading. The rise in use of material in the low energy building can, however, mean that there is an increased consumption of material and energy overall. Thormark (2002) discovered that up to 45% of the total energy used is in the embodied energy in a low-energy building and that such a building could have a greater total energy use than that of a building with a higher operating energy consumption. Besides, he also said that 37-42% of the embodied  energy could be recovered  by recycling of materials. Embodied Energy According to an unknown author (2007), Embodied Energy is the amount of energy that has gone into the making of a material or things made with materials. A very high percentage of the world’s energy is derived from fossil fuels which, when burnt, release vast amounts of CO2. As the production of energy from fossil fuels is environmentally unfriendly, materials and things that have a lower embodied energy are more sustainable than those with a higher embodied energy. On average, 0.098 tonnes of CO2 are produced per gigajoule of embodied energy (Sustainable built environment 2007). Source: Sustainable Technologies (1996) Figure 2.2: Embodied Energy of the different building materials The embodied energy per unit mass of materials used in a building varies enormously from about two gigajoules per tonne for concrete, to hundreds of gigajoules per tonne for aluminium.(Figure 2.2). The reuse of materials commonly saves about 95% of embodied energy which could otherwise be wasted (Sustainable Built Environment 2007). According to Fichtner Report (1999), in Mauritius, steel is the only waste material generated from the construction industry which is recycled, implying that most of the embodied energy of the materials is wasted. Resource Efficiency in a building According to the report â€Å"Construction Resource Efficiency Review† (2006), resource efficiency is about the sustainable use of resources. Indeed, there should be effective use and management of all the resources available to the industry while at the same time optimising output and profit. There is much emphasis on the use of all the physical resources (water, energy, etc) and materials used in the production and operation cycle. As minimum resource is used in the manufacture of the product, profits can be made by increasing productivity. Resource efficiency can also be achieved by reducing the wastes. As far as the construction industry is concerned, there is a need to focus on sustainable consumption of resources. Buildings can be built with fewer resources while looking at the same time at the impacts of the building on the environment. Sustainable Buildings Buildings have a tremendous impact on our environmental quality, resource use, human health and productivity. According to Nicholas S. (2003), sustainable building meets current building needs and reduces impacts on future generations by integrating building materials and methods that promote environmental quality, economic vitality, and social benefit through the design, construction and operation of our built environment. Sustainable building, also referred as green building, involves the consideration of many issues, including land use, site impacts, indoor environment, energy and water use, lifecycle impacts of building materials, and solid waste. Benefits of Sustainable Building There are a number of environmental, social, and economic benefits which we can enjoy from a sustainable building. Miriam L. (1999) gives some benefits of sustainable building to the environment, which are as follows: air and water quality protection soil protection and flood prevention solid waste reduction energy and water conservation climate stabilization ozone layer protection natural resource conservation open space, habitat, and species/biodiversity protection Also, sustainable building can have other benefits for designers, contractors, occupants, construction workers, developers, and owners. These benefits include: Improved health, comfort, and productivity/performance As mentioned earlier, people spend 80 % of their life in some buildings. It is reported that 30 % of new and remodeled buildings worldwide may be linked to symptoms of sick building syndrome (WHO 1984). Particular Symptoms are:- Headache Eye, nose or throat irritation Dry cough Dizziness Fatigue Sensitivity to odors Sick building syndrome (SBS) is normally caused by fungi and bacteria that build up because of inadequate fresh air ventilation in structures. Therefore, improving the indoor environment of the building can reduce the effect of SBS. Lower construction costs The cost of the building can be lowered by reducing the use of material and saving on disposal costs because of recycling. For example, recycled aggregate can be used as filler material. Lower operating costs As discussed earlier in chapter 2.10, the use of energy can be reduced in a building by designing the building such that it gets maximum sunlight, and in so doing, cutting down expenses concerning electricity. This has a great impact for people with low income, who spend much of their salary in paying utility bills. Life Cycle Assessment â€Å"†¦.Life Cycle Assessment is a process to evaluate the environmental burdens associated with a product, process, or activity by identifying and quantifying energy and materials used and wastes released to the environment; to assess the impact of those energy and materials used and releases to the environment; and to identify and evaluate opportunities to affect environmental improvements. The assessment includes the entire life cycle of the product, process or activity, encompassing, extracting and processing raw materials; manufacturing, transportation and distribution; use, re-use, maintenance; recycling, and final disposal†¦.† Guidelines for Life-Cycle Assessment: A Code of Practice, SETAC, Brussels (1990). There are four main components of LCA, which are as follows: Goal definition and scoping: Identify the LCAs purpose and the expected products of the study. Also, he needs to determine the boundaries and assumptions based upon the goal definition Life-cycle inventory: Quantify the raw material and energy inputs during each stage of production. Moreover, environmental releases are also taken into account. Impact analysis: Assess the impacts on human health and the environment associated with energy, raw material inputs and environmental releases quantified by the inventory. -Improvement analysis: Evaluate opportunities to reduce energy, material inputs, or environmental impacts at each stage of the product life-cycle. For this project, only the environmental impacts (carbon dioxide emission) and energy used from the manufacture of all the materials utilised in the construction of a typical residential house were considered. Construction Waste The construction energy generates an enormous amount of waste. Rogoff and Williams (1994) pointed out that in the USA, wastes from the construction industry contributed to approximately 20 %, in Australia 30% and in UK more than 50 % of the overall landfill volumes in each country. The Building Research Establishment (1982) has defined waste as the difference between materials ordered and those placed for fixing on building projects. Serpell and Alarcon (1998) defined construction waste as any material by product that does not have any residual value. But this is not true for the construction and demolition waste as much as the waste can be reduced or recycled. By reducing the level of waste in the construction industry, it benefits the environment and lowers the cost of the project. Bossink and Brouwers (1996) estimated that about 1-10% by weight of the purchase construction material leaves the site of residential projects as waste. However Guthrie et al. (1998) found that at least 10 % of all the raw materials which are delivered on most construction sites are wasted through damage, loss and over-ordering. A study carried by Dabycharun (2004), pointed out that a residential house in Mauritius generates about 0.2-0.5 tonne/m2 of waste. He carried out questionnaire interview in order to get this figure. However, the Fichtner report (1999) states that during the construction of an average private house of 140 m2, 8-10 tonne of mixed waste are generated. Skoyles and Skoyles (1987) identified two main kinds of building construction waste and finishing waste. Structure waste consists of fragments, reinforcement bars, abandoned timer plate and pieces which are generated during the finishing stage of a building. For example it comprises of surplus cement motar arising from screeding scatters over the floors inside the building. There are two distinct procedures in minimising the amount of in landfill sites through the construction process. The first one is to reduce the amount of waste generated through source reduction techniques both on site and during the design and procurement phases of a building project. The second procedure is to improve the management of the unavoidable waste generated on site. In managing the unavoidable waste, there are three options in order of preference. They are as follows: Reuse Recycling Disposal The balance between the three will depend upon the nature of the materials wasted, legislative requirements for the specific materials and the cost effectiveness of each option. The cost will in turn depend upon the availability of reusing and recycling options and the opportunities for reuse on a specific project. Recycled materials, while requiring transportation and reprocessing, consume significantly fewer resources compared to the extraction and processing of raw materials. This is particularly true for metal such as iron, copper and aluminium. These metals can be reproduced to a quality equal to that of raw material processing. Both concrete and timber can be recycled or reused but with the defect that the quality of the final product is often diminished. By crushing concrete, we can  reuse it as an aggregate for some purposes, particularly like paving (Boyle, 2005). But, it was found by Millard and al. (2004) that from the recycled aggregate found in the construction and demolition waste, concrete blocks can be manufactured. Also, coarse recycled aggregates can be used in new concrete (Limbachia, 2004). Good grade timber can be used in the making of furniture. It is strongly stated not to use supporting timber since it is difficult to determine whether a used timber beam has stress cra cks or other weak points. In other countries, plastics can be recycled into a number of construction products, including tiles, lumber, heating and wire insulation and carpet. According to Huang and Hsu (2003), each year in Taiwan over 10106 tonnes of construction material are extracted for their usage and more than 40106 tonnes of construction waste are disposed without recycling. Significant amounts of asphalt were present in the waste. However, if it was recycled, this would have decreased the amount of asphalt which was imported. Thormark  (2002) pointed out that recycled concrete, clay brick and lightweight concrete can meet the total need for gravel in new houses and in renovation. Materials and Methods The next part of the dissertation was the methodology. In this section, an analysis was carried out on the different resources used for the construction of a single-storey house and the CO2 emission from each of the different resources. Therefore, a house had to be selected to carry out the analysis Selection of a typical house The house model used for the analysis was basically a virtual detached house which occupied a space of 128.30 squares metres floor area. The floor area was measured at plinth level to the external face of the external wall. The plan of the typical house model was obtained from the Central Statistics Office which was originally provided by the Mauritius Housing Company Limited. The house represented the most common type of residential house in Mauritius. The plan of the house is found in appendix A. The building constitutes of two bedrooms, a living-dining room, a kitchen, a toilet, a bathroom, a verandah and an attached garage. It was assumed to be built up of concrete block walls, reinforced concrete flat roof, internal flush plywood doors, glazed metal openings, screened floor and roof, tiling to floor and walls of W.C, and bathroom and kitchen worktop; the ceiling and walls were rendered and painted both internally and externally. It should also be noted that in the event the single-storey building would need to be converted into a two-storey house, an additional provision of more substantial foundation and of stub columns of the roof has already been made. Calculation of different resources Various materials and other resources were needed during the construction of the house. These can be broken down in different input categories. The input categories (different components) for the construction comprised of labour, hire of plant, materials and transport. The materials were further broken down into hardcore fillings (remplissage), cement, sand, timber for carpentry and joinery, metal openings, ceramic tiles, glass and putty, plumbing, sanitary installation, electrical installation and other miscellaneous expenses. The weightage of the components, shown in table 3.0, was calculated by a private firm of Quantity Surveyors for the Central Statistics Office’s use. The firm had identified nineteen stages through which the construction of the house had gone through. The cost for each stage was calculated. Detailed cost of each inputs in terms of plant, labour, materials and transport that go into the construction of typical residential house were calculated. According to the Statician, Jagai D. (pers. Comm., 19 November 2007), the construction of the single storey building, in the year 2001, was estimated by the quantity surveyor to be Rs 550,000. the weight was calculated so that each input category represented a fraction of the price for the residential building. Table 3.0 Weightage of different Input categories (Source: construction price index,2007) Input categories Weight / % Labour Skilled workers Unskilled workers 16.8 17.7 Plant Mixer Breaker Metal plaques 0.7 0.9 1.4

The Prince Essay -- essays research papers

The Prince   Ã‚  Ã‚  Ã‚  Ã‚  Governing countries and states properly has been a difficult task from the beginning of time. In every country there will be people to who are unhappy and will disagree with your rule, causing your system to fail. So, century after century, people have tried new ways to make their politics suffice everyone’s needs. However, the art of politics is a complicated and challenging issue that will always be needed to be dealt with. There have been many ways in which people have preached their ideas on politics, but none were better than those of Niccolo Machiavelli. Born in 1469, Niccolo was adamant in creating a master plan for seizing and controlling power. He voiced these themes on what it takes to be a prince of a state in his magnificent book, The Prince. In his book many themes were expressed in order to fulfill the role of a prince. These themes ranged from human nature to military force and most importantly virtue.   Ã‚  Ã‚  Ã‚  Ã‚  Machavelli believed that the state is the highest achievement of man and one should love the state more than his own soul. Being the perfect prince is clearly a difficult task, but if done correctly, it can be very rewarding. Machiavelli also believed that human nature does not change. In general Machiavelli thought people were ungrateful, selfish, and insincere people, who only care about themselves. Therefore the government must take account for man’s true nature and use his qualities for its purposes. Machiavelli also explained that a ruler who intends to be successful must be prepared to do bad things when necessary. He must sometimes caress, sometimes hurt, sometimes forgive, and sometimes punish. This requirement must override all moral judgments, and when making the decision, the ruler must act without hesitation. Hesitation would project â€Å"false wisdom†.   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Another, and probably the most important concept of political success is the idea of virtue. Virtue means strength, intelligence, and courage, the necessary qualities of any human being. Machiavelli felt that the quality of virtue was found in some of the world’s most important leaders; Moses, Cyrus, and Romulus to name a few. Governments ruled by an individual depends upon this leaders virtue. Without it, the political success will crumble.   Ã‚  &... ...felt it was necessary to study history. This way he can focus on successful rulers’ victories and defeats and analyze them for his own well being. Alexander the Great studied and imitated the rule of Achilles and went on to become one of the most successful rulers ever. Machiavelli felt that these were necessary means in becoming a successful ruler. He also felt fortifications had little importance, stating â€Å"the best fortress is to be found in the love of the people†.   Ã‚  Ã‚  Ã‚  Ã‚  In Niccolo Machiavelli’s The Prince, we have read numerous aspects of becoming an effective and successful ruler. He focused on all aspects of life and discussed each in great detail. He studied human nature, fortune, military tactics, virtue, and personal qualities of past rulers and analyzed why each one’s rule collapsed. He found out the ruler with both the lion and the fox qualities, he was able to have a successful rule. Machiavelli was creating some sort of machine that would be able to conquer fortune, human nature, conspiracies, battle, and the test of to time to rule a politically unified Italy. The themes in The Prince have changed views on politics and leadership to this day.

Galapagos Island Case Essay

Introduction Geographical   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The geographical mapping of Galapagos Island is able to support both aquatic life and terrestrial life due to its adverse favorable climatic conditions. This is because this island lies in the Pacific Ocean about 999   Ã‚  km from the South American coast and straddling the Equator. Due to this smart geographical condition, there is abundant biodiversity of both flora and fauna. Galapagos Island is one of 13 islands that is currently inhabited, with a total population of 30,000 people. According to the latest survey, the Galapagos Marine Reserve occupies roughly 139,000 square kilometers. This large natural habitat can support huge mass of living creatures if protection measures are put in place to safe the endangered species. The island was recognized as world heritage site due to abundant living things that are not easily found elsewhere, but only exist in this prestigious island. Galapagos Island   Biodiversity     Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   This island is blessed with abundant biodiversity, which enables it to have its natural heritage. Galapagos has specific niche to many unique, endemic animals. Naturally, some of these animals are fearless due to lack of natural enemies. This is a usual case for some of marine life. The only enemy is man due to his agribusiness activities and his new technologies concerning marine science, fishing and tourism. For example, the giant tortoise has gradually evolved into several distinct forms on the different islands of the archipelago. The reason being, these tortoise have no natural predators except man during the 17th and 18th centuries when buccaneers and pirates used the islands as a staging post. This is the only time when these tortoises were being used as delicacies. The Galapagos Island has several species of reptiles. They include, the marine iguana, which is a herbivore that grazes on seaweed, land iguanas, lizards, geckos, lava and snakes. Some of the native terrestrial mammals include rats that prefer grassy areas or wheat and rice plantation and two species of bat. Other common creatures are finches. There are several species of finches. Some are small brownish, soil like finches that are adapted to a range of different foods. These are known as Darwin’s finches. The name was coined after the father of evolution sir Charles Darwin because they have been important to scientists trying to study how evolution occurs this is because of different beak types. They include the tool-using woodpecker finch. Other endemic terrestrial birds include hawk, flycatcher, rail and other species of mocking birds. All these birds have specific characters that feature in them and are the only birds found in Galapagos.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Among the endemic aquatic birds are a flightless cormorant, two species of gull, and one penguin species that live in tropical waters. Going on, Sea lions and fur seals occur along the coasts, while dolphins, whales and sea turtles are also common. Other species of fish are found along the seashores. Several species of insects, cryoptera, spiders, mites, slugs, land snails, seashells, starfishes and urchins, crabs, and many other smaller invertebrates occur.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Beside different kinds of animals, the island supports different types of fauna. The plants of   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Galapagos are equally fascinating and attractive. In the highlands, there occur many species of endemic Scalesia tree that is characterized by having daisies, as well as tree ferns, bromeliads and orchids. Along the coasts are mangrove forest and huge prickly pear and candelabra cacti. The Brachycereus cacti are adapted to less fertile lava flows. The lava flow is a remnant of volcanic activities that erupted in the past . Note that Galapagos Island is a product of those volcanic activities. The shores can support many vivid morning glories and mats of bright red sesuvium. Galapagos also has its very own, endemic species of cotton, tomato, pepper, guava and passionflower that are not exotic. Kinds of plants, especially those belonging to the daisy phylum, have gradually evolved on the different niche in this island into whole arrays of endemic species. This again provides bio-conservationist with classic examples of adaptive speciation. Biodiversity threats.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Currently, the Galapagos Islands are among the best nation parks with tropical archipelago in the world. Despite being rich in its pristine nature, it faces challenges and extinction threats to the only unique type of biodiversity in the island. Actually foreign species sneaked in by naughty ship workers, pirates and other evil-minded foreigners are some of human intrusions that adversely pose a major threat to native terrestrial biodiversity. Another factor is spilling of oils in the seawater and during mosquitos’ control. Several myriad of invasive plants and animals vectored in by man’s day to days operations, inhabit the island adding more competition in the food chain. . Some of these foreign plants include food crops like quinine, guava and blackberry. In the operation process, harmful weeds and parasitic plants are introduced in new territories of this Island.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Animals in this category of invasive species include both domesticated and wild, for example, goats, Netherlands pigs, Asian dogs, cats, rats and fire ants. Some of introduced species in Galapagos Island include rodents like the black rat, Norwegian rat and house hold mouse. These rodents are disastrous as they feed on the native wildlife of the islands, including plants, seeds, bird’s eggs and chicks, reptile’s eggs and young ones. This way the rodents threaten the fragile ecosystem of the islands and are responsible for extinctions on islands biodiversity worldwide. The rodents also pose a great risk to human health by spreading zoonotic infections.[1]   Beside that, rodents are agricultural and household pests. They are vectors to fleas, worms and other protozoan. It is known that some nematodes that affect rats can invade other small animals and plants through evolution. [2]   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Some species, such as the mangrove habitat birds like finch species such as C. heliobates, the Galapagos petrel and the flightless cormorant are endangered somehow due to reduced populations caused by fluctuating reproductive system. Much tourism during breeding seasons increases animal stress and disturbance. This interferes with reproductive systems. Other endemic birds in the island are the tree finches such as Certhidea olivacea and Camarhynchus psittacula.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The Galapagos birds are already under threat from invasive rodents. The interference from both natural effects and human activities is a threat to Galapagos penguin and other aquatic bird species From a case study, it was observed that, 22 to 23.5 percent of the endemic plant species and 48.9 to 51 percent of the vertebrate species are considered endangered. Some of these problems have existed for more than a century due to negligence and ignorance by the government and other environmentalists.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Global warming which is a feature of human adverse pollution to the environment has endangered marine life. Snow and ice melting is a threat to some of marine creatures. Another threat to the biodiversity is that, Galapagos is undergoing an enormous cycle of economic and population growth that is accelerated by external markets and competition. External pressures are accompanied by increased threats to native biodiversity that drag be hide conservation efforts. Some of these threats as stated are the arrival of invasive species, over-harvesting of marine resources, for example, almost more than 90 million sharks are killed a year, mainly for their fins. They are fetched from the sea purposely for their fins and not the flesh. This barbaric altitude can wipe sharks in the near future if pouching will not stop. When sharks become wiped, tourism industry would be greatly affected making the economy of Galapagos to dwindle. Lastly, more frequent pollution events like agribusiness activities interfere with biota.   Agricultural farming involves use of several chemicals that interfere with the marine life. This mostly occurs when these chemicals find their way into the sea either by drainage or through silting.   Ã‚  Ã‚  Ã‚  Ã‚   Indirectly, enormous demand growths on the biodiversity of the islands are due to the international tourism industry and aquatic or marine resources. These are some of global factors driving business growth in Galapagos. This huge developments act as catalysts for the growth of the Galapagos human population. This has consequently, resulted to the needs for greater local access to basic natural resources and public services to catch up with the increasing human population and competition; this creates new social and political stresses in the islands. Poor distribution of resources and income from the protected areas discourages self-motive for conservation. Internal conflicts due to external market impact do not address conservation of biodiversity. Lack of awareness on importance of conservation biology in the Island, and non-instrumental professionals lead to failures to re-address the issue of endangering the species.   Conservation   methods and the needs to protecting the biodiversity.   Ã‚  Ã‚  Ã‚   After describing most of endangered species in this island, it is good to focus on and advocate scientific Conservation methods of both flora and fauna. Preservation of the endangered species and the environment is a complex process that requires strong machinery force. Therefore, without government and non-government back-up, this project cannot succeed. Proper programs need to be set up to outsource services and other strategic means, including funding to enhance successive conservation. In Galapagos Island, several foundations currently help to fund this project. Nevertheless, the funding is not enough to meet all the necessary measures. For example, the Galapagos Conservation project, Charles Darwin Foundation, The Galapagos Conservatory etc cannot meet these challenges without aid from donor funds. This is because to educate the whole nation about the importance of conservation, and other necessary measures is a big issue that requires donor’s aid. Actually, you should propose on external exhibitions on the needs to conserve the biodiversity, another suggestion is experienced experts need to be produced, proper fishing items that cannot fish on small or immature fishes are supposed to be bought, some motor boats should be available   to control and survey fishing mechanism of both legitimate and illegitimate fishermen. Propose on preservative fringes and other necessary items bearing in mind that some items are expensive for the local people.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     The government should implement measures to curtail behaviors that can lead to eradication of endangered species. These measures should include controlling pouching, smuggling, pirating and illegal immigration. In this case, Patrolling water navy and vigilante groups should be brought up in order to mitigate fishing of sharks. The use of this system for monitoring fishing vessels would enhance trapping the vessels that carry out these highly destructive fishing practices and thus provide evidence to the port police authorities so that the illegal fishing activities may be stopped. This process can only succeed with the help of local anglers of the islands and our long efforts to promote sustainable fishing practices, to limit the use of destructive fishing techniques.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Boundaries need to be restricted and observed to avoid importation of foreign organisms. This should be a foundation to remove corrupt inhabitants off the islands. People should be educated through civic education that incorporates biological and social sciences to create awareness on conservation biology. Farming methods that protect the environment should be implemented e.g. restrict any use of harmful farming methods.   Institution of higher learning should be set up to offer degree courses on conservation biology. This is because local young Ecuadorian conservationists do not have the necessary qualifications to move forward in their careers. Galapagos scientists need to be empowered with doctors of philosophy to rise to the positions of future responsibility. Surprisingly, the Charles Darwin Foundation comprises foreign scientists such as American or European as the most learned barons who cannot dedicate their service fully. The government through its own funding or by donors fund should focus on establishing environmental exhibition and communication activities. This is a valid proposal to create awareness and to inspire stewardship on Island farming and cultural behaviors that can enhance conservation. Some of the undertakings that the government should do is protecting the national parks and resorts. Furthermore, conservationist and other well-wishers have supported by saving giant tortoise from extinction. They should focus on methods of interval counting of the endangered species and reduction of their predators.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The national Park Service and the Ecuadorian government are reforming a bit of clauses that safeguard wildlife. Restrictions are imposed against the residents of the islands in the form of pouching restrictions. This include, restrict fishing within certain miles of the shores and out of the swimming patterns of the endangered species in the islands. It is also illegal on the island to hunt any terrestrial animals and the offence is jail term and revocation of the citizenship on the island. These are among the tough measures that ministry of wild life in conjunction with the environmentalist are imposing to conserve the endangered species. You should pressurize on review of important sections in the country constitution that safeguard the wild life. Some nuisance pests need to be eradicated for example, rats, parasitic weeds and plants, since some fish such as sharks suffer from animal stress due to tourism visitors. These areas have been classified as non-go zones, which mean that the number of motor boats and visitors in the water can be regulated. However, many areas have still to be restricted. People should be sensitized on zonotic infections caused by some of these foreign organisms. Funding to help identification of breeding zones for sharks and the monitoring of population increase in coastal areas are important areas of research that can aid in conservation. Breeding and nestling parameters, which are essential for shark conservation, are not yet understood. In case of preserving sharks that attract a lot of tourism, conservation funds would assist in monitoring and identifying sharks movements and breeding patterns. Eradication of animals and plants, which pose a threat to the existing of the eco system, is a noble idea that is facilitated by the National Park service.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Conclusion.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Conservation biology in the Galapagos is important because the work done by the Galapagos National Park to protect the biodiversity of the Galapagos Islands is unique. What to protect and the methods to be used depend on scientific knowledge and government back up. This will include careful study, research and interpretation of existing data on wildlife. The funding requested will be required to help local residents to become a leader of their own future. Without the necessary research, awareness, funds and dedication provided by the Galapagos Conservation Trust, this valuable habitat and its unique wildlife will become a history.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The fact is extinction would be due to human intrusion. This adversely leads to loss of biodiversity. The consequences are loss of marine life and disappearance of native terrestrial animals and plants.   Many species of wildlife will be extinct, species that have been a pivotal point in the discovery of natural selection. The advancement of these studies that is so important to science will be lost. There are many species in Galapagos Islands that are not analyzed. The destruction of the sensitive ecosystem could destroy these species forever.   Apparently, tourism sector would be greatly affected this Island biodiversity becomes extinct. Tourism is growing at an enormous rate of 4% per year and is expected to continue at this rate. The need for support functions in the industry continues to provide significant job opportunities for the local residents. Indirectly, the national economy would be greatly affected hence currency fluctuation and instability.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   To avoid this disastrous situation, conservation biology should be addressed from all perspective. Reference: Sharon L. Spray, Karen Leah (2003) Revelation of species: Loss of Biodiversity Pg 34, Row man and Littlefield – Publisher The islands’ biodiversity, retrieved on 31st August 2007, available at  Ã‚   www.tiscali.co.uk The Galapagos Islands, retrieved on 31st     August 2007, available at  Ã‚  Ã‚   www.darwinfoundation.org/ Galapagos biodiversity vision, retrieved on 31st   Ã‚  August 2007, available at www.worldwildlife.org/ Unique biodiversity of the islands, retrieved on 31st  Ã‚   August 2007, available at  Ã‚   www.gct.org Galapagos conservation, available at  Ã‚   www.wam.umd.edu   Environmental solutions, available at www.environment [3] [1] Tick- and flea-borne rickettsial emerging zoonoses File Format: PDF/Adobe Acrobat – View as HTML The rat flea, Xenop-. sylla cheopis, is the main vector of murine †¦Ã¢â‚¬ ¦ Not well characterized Molecular evidence of infection †¦ www.vetres.org/articles/vetres/pdf/2005/03/v4057. [2] zole, levamisole) of helminths coupled with improved man- †¦ effect on nematode. Four dilutions of each plant extract (0.5–2.0 mg/mL) available at www.liebertonline.com/doi/pdf/10.1089/acm.2006.12 [3]

The Benefits Of Instrumental Music - 1489 Words

Music to my Ears: The Benefits of Instrumental Music It s happened to us all - instead of working on that persuasive essay or that chemistry homework, we spent the week hanging out with friends or watching YouTube videos, leaving us with a huge workload to finish the night before its due. We re up at 12:30 AM trying to figure out what to write about or how to solve that problem, all while stressing about our grades or our sleep schedules. We try to work on the schoolwork, but we end up getting distracted by small things like how unorganized our desks are. We wake up the morning after and think, â€Å"Why couldn t I focus last night.† If this happens to you too often, here s a piece of advice: listen to instrumental music. If you listen to†¦show more content†¦It is also able to block out distractions around us – noise-cancelling headphones, for instance. By improving our attention span and blocking out distractions, music allows us to get more work done in a shorter time. Instrumental music also helps relieve stress, which not only inhibits a person s work efficiency but also affects his/her health in general. When we are stressed, we tend to not be able to sit down and work on assignments for long periods of time. Imagine that your day has been going terribly; your car wouldn’t start this morning, you were late for your morning class, you spilled your pasta on your expensive shirt, etc., and you got home and needed to study for a big exam the next day. Naturally, you wouldn’t have any motivation to study, despite the upcoming exam. However, if you played slow, calm music, your frayed nerves would instantly be soothed from the moment the music starts. If you followed this up by playing epic-sounding music, you’ll likely find the urge to get some studying done, making that exam much easier for you. 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