......................16 3. Conclusion............................................................................................................ ....18 4. Sources............................................................................................................... .......19 Renewable energy Renewable energy is energy generated from natural resources--such as , wind, rain, tides and geothermal heat--which are renewable (naturally replenished). In 2006, about 18% of global final energy consumption came from renewables, with 13% coming from traditional biomass, such as wood-burning. Hydroelectricity was the next largest renewable source, providing 3% (15% of global electricity generation),followed by solar hot water/heating, which contributed 1.3%. Modern technologies, such as geothermal energy, wind power, solar power, and ocean energy together provided some 0.8% of final energy consumption. While there are many large-scale renewable energy projects and production, renewable technologies
............................................................................................27 SOLAR ENERGY..............................................................................................................27 8.1 Photovoltaic energy...................................................................................................... 28 8.2 Solar thermal heat.......................................................................................................29 8.3 Solar thermal power plants......................................................................................... 30 8.4 Solar energy and the environment..............................................................................30 WIND ENERGY.................................................................................................................31 9.1 The History of Wind ..................................................................................................31 9
Tartus secondary school of business Nuclear Power Helena Nulk form 11b Tartu 2009 Table of contents Introduction..........................................................................................................................................3 What is nuclear power?....................................................................................................................3 Nuclear life cycle.............................................................................................................................3 What is nuclear energy?...................................................................................................................3 What is nuclear fusion?.................................................................
SOME EUROPEAN COUNTRIES Abstract District heating (DH) offers low primary energy demand, high security of supply and small CO 2 emissions. Barriers to DH in the UK, Ireland, France, Romania and the Czech Republic have been compiled through publications and interviews. DH systems require large investments, have negative initial cash flow and long payback time, which obstructs financing. One actor should control DH from source to consumption. If the value chain is fragmented, contracts are required between the links. It increases risks and financing costs, like in the UK and Ireland, where DH is not established. There are few multi- family houses with central heating and it is expensive to build DH networks in built areas. Most French DH systems are operated according to long-term concessions by companies that sell electricity and gas. No strong actor provides unbiased DH support. In the Czech Republic, gas
Worryingly, as few as four students have both breakfast and school lunch. Still more disturbing is the fact that an alarming proportion--approximately onethird--of the students have neither. Eating brown bread Interestingly enough, bread, a good source of fiber, enjoys popularity among young people. 75 per cent of the students surveyed eat three or more slices of brown bread per day, with only a quarter of respondents restricting themselves to one or two slices. Eating fat As regards fat consumption, the majority of the students eat margarine. Four students prefer butter, and another four eat neither. Conclusion It is noticeable that the eating habits of students in their final year at Freedonian Secondary School are not very healthy. Moreover, there are no students who have both breakfast and school lunch, eat more than four slices of brown bread per day, and avoid fat.
Margit Tepner k0848752 Sustainability aspects of biofuels 1. Introduction The literature review will discuss the sustainability aspects of biofuels. Food production will be the main concern as it is the most debated issue, but other aspects, such as land use change and water consumption will be also considered as they are essential aspects in the biofuels sustainability criteria. The review will discuss the viability of biofuels based on the current technologies. Second-generation biofuels are not yet commercially viable and therefore will not be discussed; although they could significantly improve the sustainability of biofuels when they break through to the industrial scale. 2. The scale of biofuels production 2.1. Drivers of biofuels production
really interesting thing to make a report of. I chose this particular topic because I have always been interested in green energy. This topic gave me an excellent opportunity to improve my knowledge about these kinds of things. For me this report is a great challenge because I have not done anything like this before, especially in English. Primary goal for me is to improve my knowledge about renewable energy and also usage of English language. This report is going to talk about biogas. It provides a brief review of usage and future prospects of the biogas. I have tried to make this report as understandable as possible. By the end of this report I want to come to a conclusion whether biogas is the best source of future energy or are there any other sources that are better. What is biogas? Typically it refers to the gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste,
Tartu Kutsehariduskeskus Autode ja masinate remondi osakond Rainer Kaine AT-109 Iseseisev töö Electric cars Instructor: Tauris Vijar Tartu 2010 Introduction In this essay i´m write electric cars and this how these cars are built, how easy is built electric car, how much costs electric cars. The problems for electric cars, there are many problems why peoples still can´t use quiet and more green cars. But even the electric car is not all green because the electricity produced for nuclear, coal, oil shale and natural gas. These ways to get electricity pollutes nature, the only difference between lies in the fact that pollution is in the one place. Coal Electric power station Oil shale power station in Narva What is a electric car
access, and still end up with an unresponsive child. Such is life. As for class size, I think kids in quantity learn better, on average, than isolated children. I would like my children to have many friends, not few. This, too, I see as obvious. I'd rather have a house full of mess-making kids, than just one, lonely and uninspired. On the other hand, perhaps a student could learn enormously more from a tutor than in a classroom packed with other students. Again, there must be an ideal ratio, plus age considerations, as well as the nature of the topic being taught, to consider. A pet peeve of mine is how competitive athletics play an excessive role in schools. Schools cannot limit their scope to mere teaching of abstractions, such as algebra and grammar. They also need to instruct about health, including diet and exercise. Yet sports programs take too much money and time, which otherwise could be used in artistic endeavors, or to buy more
Running head: NUCLEAR ENERGY Nuclear Energy U.S. Government History of Nuclear Energy- Nuclear Energy History of Nuclear Energy · Uranium was discovered in 1789 by Martin Klaproth. He was a German chemist, and named his discovery after the planet Uranus ("Outline history of," 2010) · 1939-1945 Manhattan Project- atomic energy program to develop the first transportable atomic bomb ("Nuclear technologies timeline," ) · 1942- First self-sustaining nuclear chain reaction ("Nuclear technologies timeline," ) · 1945- Hiroshima and Nagasaki- US
FIND OUT 5 WAYS HOW TO STOP GLOBAL WARMING. 3. Overpopulation: The population of the planet is reaching unsustainable levels as it faces shortage of resources like water, fuel and food. Population explosion in less developed and developing countries is straining the already scarce resources. Intensive agriculture practiced to produce food, damages the environment through use of chemical fertilizers and pesticides. FIND OUT 5 WAYS HOW TO STOP OVERPOPULATION. 4. Waste Disposal: The over consumption of resources and creation of plastics are creating a global crisis of waste disposal. Developed countries are notorious for producing an excessive amount of waste or garbage and dumping their waste in the oceans and, less developed countries. Nuclear waste disposal has tremendous health hazards associated with it. Plastic, fast food, packaging and cheap electronic wastes threaten the well being of humans. FIND OUT 5 WAYS HOW TO MANAGE WASTE. 5
Water creates energy Eduard Kamenski 11a form The world uses energy from many different sources, such as: hydroelectric power, nuclear power plants, solar energy, and wind generated power. There are positive and negative aspects of each source, but which source of energy is best? My opinion is that the best source of energy is water and I'll bring up some facts why do I think so. Hydroelectric power is currently the world's largest renewable source of electricity. It accounts for six percent of the worldwide energy supply or about fifteen percent of the world's electricity. Water has been found to be a major source of energy. Water power is utilized at present mainly as hydro-electricity. It is produced from moving water and from falls with the help of turbines and dynamos. Hydro-electricity has acquired great significance as a source of energy in the country in the
the advancement in spacecraft related research. The purpose of this essay is to explain what a railgun is and how it works along with a little history and the recent advancements in railgun related science. 3 1. What a railgun basically is A railgun is an electrically powered electromagnetic projectile launcher and a large electric circuit, made up of three parts: a power source, a pair of parallel rails and a moving armature. Along the pair of parallel conducting rails a sliding armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail. Railguns have long existed as experimental technology but the mass, size and cost of the required power supplies have prevented railguns from becoming practical military weapons.
1 Wave energy Introduction to wave energy There are several possibilities to harvest different forms of energy from the sea. One of these options is the usage of waves for the generation of electricity. The devices needed to perform this task are called wave energy converters. Wave energy is indirect solar energy in twice. At first there is the wind, which is caused by variations in atmospheric pressure due to a differential solar heating of earth's surface by the sun. Different regions of pressure drives a force which rises a movement of atmospheric air masses that causes the earths wind system. If wind strikes over the surface of an open water, waves are induced. First they are very flat with only a low level of energy. When there is a long distance over
and natural radioactivity are all among the natural causes of air pollution. Usually, natural air pollution does not occur in abundance in particular locations. The pollution is spread around throughout the world, and as a result, poses little threat to the health of people and ecosystems. Though some pollution comes from these natural sources, most pollution is the result of human activity. The biggest causes are the operation of fossil fuel-burning power plants and automobiles that combust fuel. Combined, these two sources are responsible for about 90% of all air pollution in the United States. Some cities suffer severely because of heavy industrial use of chemicals that cause air pollution. Places like Mexico City and Sao Paulo have some of the most deadly pollution levels in the world. EFFECTS Air pollution is responsible for major health effects. Every year, the health of countless people is ruined or endangered by air pollution.
Prior to this momentous event that heralds an evolutionary transformation in the life of plants, the planet had already been covered in vegetation for millions of years. The first flower probably did not survive for long, and flowers must have remained rare and isolated phenomena, since conditions were most likely not yet favorable for a widespread flowering to occur. One day, however, a critical threshold was reached, and suddenly there would have been an explosion of color and scent all over the planet – if a perceiving consciousness had been there to witness it. Much later, those delicate and fragrant beings we call flowers would come to play an essential part in the evolution of consciousness of another species. Humans would increasingly be drawn to and fascinated by them. As the consciousness of human beings developed, flowers were most likely the
on Climate Change, added that the Pentagon's dire warnings could no longer be ignored. *'Can Bush ignore the Pentagon? It's going be hard to blow off this sort of document. Its hugely embarrassing. After all, Bush's single highest priority is national defence. The Pentagon is no wacko, liberal group, generally speaking it is conservative. If climate change is a threat to national security and the economy, then he has to act. There are two groups the Bush Administration tend to listen to, the oil lobby and the Pentagon,' added Watson. *'You've got a President who says global warming is a hoax, and across the Potomac river you've got a Pentagon preparing for climate wars. It's pretty scary when Bush starts to ignore his own government on this issue,' said Rob Gueterbock of Greenpeace. *Symons said the Bush administration's close links to high-powered energy and oil companies
Hello My name is JOHN SMITH and I am here to talk about Hydroelectricity. Global energy use has risen by 70% since 1971 and continues to increase at the rate of 2% per year. There are many scenarios for future demand. One solution would be to use more hydropower. In 2005, renewable energy represented one-fifth of total power generation. Hydropower is the most advanced of the renewable and represents 87% of this production. 160 countries all over the world are using hydropower. Five countries make up more than half of the world's hydropower production. Those countries are: Brazil,Canada, China, Russia and the USA. (Production) *Most of the energy comes from the potential energy of dammed water driving a water turbine and generator
Renewable energy Meriliin Lend Estonian University of Life Sciences Tartu 2013 Topics Renewable energy Solar energy Wind energy Hydroelectric power Geothermal energy Biomass energy Renewable energy Renewable energy comes from sources that naturally renew, or will not run out in our lifetimes. Includes sunlight, wind, water, geothermal heat and various forms of biomass. Renewable energy cannot be exhausted and is constantly renewed. Does not harm the environment. Saves money. Solar energy Solar energy is the technology used to harness the sun's energy and make it useable. Every hour the sun beams onto Earth
Due to its high energy density, easy transportability and relative abundance, oil has become the world's most important source of energy since the mid-1950s. Petroleum is also the raw material for many chemical products, including pharmaceuticals, solvents, fertilizers, pesticides, and plastics; the 16 per cent not used for energy production is converted into these other materials. Petroleum is found in porous rock formations in the upper strata of some areas of the Earth's crust. There is also petroleum in oil sands (tar sands). Known oil reserves are typically estimated at around 190 km3 (1.2 trillion (short scale) barrels) without oil sands, or 595 km3 (3.74 trillion barrels) with oil sands. Consumption is currently around 84 million barrels (13.4×106 m3) per day, or 4.9 km3 per year. Which in turn yields a remaining oil supply of only about 120 years, if current demand remain static. Chemistry Octane, a hydrocarbon found in petroleum
- And Just Chadrick Overview- What is Green Energy? Different Types? What is sustainability? German Green Energy Cost and Efficiency Recycling What is Green Energy? -It is energy resources that are renewable -Can be naturally replenished -Clean, Safe and not harmful to the environment (aka mother earth) Types of Green Energy Green Energy going cute Solar Power · Is produced by using photovoltaic cells, which capture sunlight and turns that into energy. Problems ? -The sun has got to shine -The cost of solar panels and the systems range between $20k-40k -The light from the sun produces a very small amount of energy Wind Power -These giant pinwheels spin from strong winds which spins a turbine of a generator to produce energy. Giant Pin Wheels? Any Studies done? · It is said that wind · Bentek Energy did the
children—Christina, Michael, David, and Catherine—for their sup- port and patience during the long hours away from them to finish this book. xi ccc_tracy_fm_i-xviii.qxd 7/7/03 3:23 PM Page xii ccc_tracy_fm_i-xviii.qxd 7/7/03 3:23 PM Page xiii Introduction There is nothing on earth that you cannot have once you have mentally accepted the fact that you can have it. —Robert Collier ■ THE TRUTH ABOUT YOU You are a thoroughly good person.You deserve a wonderful life, full of success, happiness, joy, and excitement. You are entitled to have happy relationships, excellent health, meaningful work, and finan-
Harold McMillan articulated his now famous “winds of change” sweeping Africa. We had high hopes for Africa, for the Black race, that the insidious imposition of foreign rule on us, the looting of Africa’s natural resources by our colonial masters accorded us would be things of history. That is more than forty years ago. Unfortunately, the promise of independence has not been fulfilled. Today, Africa has become more desolate; there is more starvation, diseases and non-provision of essential services than when we got our independence. There are all kinds of wars in Africa than the rest of world put together. The majority of so-called Africans leaders want to stay in power until the day their bodies are put in the grave. Through buffoonery, utter mismanagement and downright stealing of the wealth of the masses, these leaders have so impoverished Africa that we are now nothing but a beggar continent. We beg for
Over two million young people has been studying or practice in some other EU countries via European Union. Union does not decide the content of schooling programs, but guarantee that acquired education and qualification will be accepted in other EU member states. Because pollution doesn't recognize borderlines the member countries of EU have taken common measures in many areas. Therefore it's not surprising that the rivers and beaches of Europe have become cleaner, the mashines pollute less and there have been established strict rules on waste treatment. Europe doesn't store it's hazardous waste in poor countries anymore. There are also strict rules in EU that ensure the safety of chemicals in usage for humans and the environment. EU leaders have an strict agreement how to minimum global warming by lessen greenhouse gases to 20% in 2020. Thanks to 50 years exist and arosed communion is war between EU countries quite thoughtless.
Today more and more disputes are caused by the enormous spread of the English language throughout the world. Some scholars claim that it has already become the first global language. And this statement isn't far from truth. But what does it mean to say that a language is a global language? Why is English the language which is usually cited in this connection? How did the situation arise? And could it change? Or is it the case that, once a language becomes a global language, it is there for ever? [1, pg.2] These are fascinating questions to explore, whether your first language is English or not. A global language is a language that is spoken internationally and is learned and spoken by a large number of people as a second language. A global language is characterized not only by the total number of speakers (native and second language speakers), but also by its geographical distribution, as well as use ininternational organizations and diplomatic relations. [4]
Should the EU seek counterbalance in oil and gas dependence with Russia? I am at the opinion that Estonia and other Baltic countries should take part of the projects and the knowledge of the side-effects would increase. Right now the studies have shown different results about the impact on the Baltic Sea and its habitats. We should actively participate in the researches in order to witness the accuracy of the results. One research showed that there are 30 mines lying in the Baltic Sea but the Finnish results showed the number of 900. In order to be aware of the threats we should show our interest not just nod when the results are represented by non-neutral organizations. Also, as right now there are negotiations about the third and fourth pipe, we should consider the economic benefits that may occure. Furthermore, as our agreement does not play role in the
junk and other debris. 4. We live in a consumer society where we find it easier to throw away something that is broken rather than get it fixed. 5. Many teenagers would prefer to go out with their friends for fast food. 6. Looking out the aeroplane window I could see that the unsightly urban sprawl of the city had spread far into the desert. 7. Although the prices at the new shopping complex may be lower, the impersonal service there keeps me going back to my local markets. 8. The government has refused to pass a law which states that all GM foods must be clearly marked. 9. It is well known that many countries are hiding stores of potentially lethal biological weapons. 10. Her stressful lifestyle caused her to suffer from both mental and physical ailments. 11. The extreme weather changes we've been having are wreaking havoc on crop production in most parts of the world. 12
Girli Vasiljev RB1X Title of report Number of pages Economic Country Review: Finland, Estonia 20 and Hungary Teacher Kalevi Torunen The goal of this paper is to compare the economic performance of Finland, Estonia and Hungary. First, a general overview on the countries will be given. After, economic indicators (real GDP growth rate, inflation, unemployment, household consumption, investment, current account, government budget and deficit) of the three countries will be compared to draw a conclusion. Keywords GDP, inflation, unemployment, household consumption, investment, current account, government budget, deficit, surplus Table of contents 1 Introduction .......................................................................................1 2 Country Specs ....................................................................................1
It is of particular interest in the post-autistic economics (pae) context because NPM largely rests on the same ideology and epistemology as standard textbook economics (STE) is based (for my take on this, see Drechsler 2000), and it has had, and still has, similar results. Already more on the defensive within public administration (PA) than STE is within economics, NPM also shows that such major paradigm shifts in theory and policy may actually happen. In addition, it occasionally appears that pae-oriented scholars have overlooked the fact that some features in public management reform, state organization, and the economic interpretation of state functions that they advocate from "Good Governance" to "efficiency" as a goal in itself actually belong into the "other camp" and by and large have a disastrous effect on "industrial" and "developing" countries alike, although the consequences for the latter are much more severe.
harming the environment Jürgen Aosaar Jaak-Albert Metsoja Ahto Oja BOVA cource on biogas from biomass March 3-7 2008 Tartu Deciduous tree species on abandoned agricultural land Current situation • The long term development plan of the Estonian energy industry foresees a reduction in the use of fossil fuels and an increase in the share of biofuels: by the year 2010 renewable energy must account for 5.1% of total energy consumption Current situation (2) • In Estonia we have abandoned arable land about 400 000 ha, part of it is overgrowing naturally, and another part has been afforested • For short-rotation forestry in Estonia, ecologically and economically the most suitable tree is probably grey alder, which is a highly productive and soil improving species Grey alder • The stock of grey alder (Alnus incana) in Estonia in 2005 was 35 millions m³. A
The environment in realtion to mobility/transport in Europe Air pollution is problem all over the world. Through some pollution comes from these natural sources, most pollution is the result of human activity. The biggest causes are the operation of fossil fuel- burning power plants and automobiles that combust fuel. Combined, these two sources are responsible for about 90% of all air pollution in the United States. All kind of pollutions can lead us to serious health problems. For example, air pollution is increasingly being cited as the main cause of lung conditions such as asthma - twice as many people suffer from asthma today compared to 20 years ago. Every year, 3.2m Europeans are diagnosed with cancer - the most common cause of death after heart disease
The main question is what makes a human being happy? In my opinion, as a person claims that he is happy, then we can firmly say that this person is successful in life because he feels content with his life. Contentedness and happiness are the key factors in determing how succesful someone is. It is often said that for a small town inhabitant, it is a lot harder to achieve something in life. I totally disagree with this statement. There are just other values in a town with a small population density. Values concerning family life are coming more forth, career and such kind of personal ambitions are kept in the backround. Also it is often mentioned that making a successful career in a small town is largely impossible, because of the lack of different resources and opportunities. By these it is commonly ment a uncompetitive education and few opportunities to develop extracurricular activities
PIL regulates relations between states. Thats why PIL is important for international relation students. PIL influences the life of everybody, it doesn't regulate people directly but indirectly (through the decisions of the states), because it's everywhere. It's like air. E.g. when you want to send a letter to Brazil, you put a stamp from your own country and send it from your post office and the letter gets delivered. Why is this so easy, because there are certain international conventions that regulate postal services. E.g. traffic signs are almost the same everywhere, why? Because of certain int conventions that require the states to have more or less unified traffic signs. States apply international regulations to national regulations and they have to be in accordance with each other, the states can always specify these regulations. Therefore, PIL regulates people indirectly.
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