Global warming is the observed increase in the average temperature of the Earth ’s near-surface air and oceans in recent decades and its projected continuation. Global warming poses an extraordinary challenge. The world ’s leading atmospheric scientists tell us that a gradual warming of our climate is underway and will continue. This long-term warming trend poses serious risks to our economy and our environment. It poses even greater risks to many other nations‚ particularly poorer countries that
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Greenhouse Gases: Carbon dioxide (CO2) is a greenhouse gas in the atmosphere that may raise average temperatures on Earth. The burning of fossil fuels could be responsible for the increased levels of carbon dioxide. If current trends continue‚ future concentrations of atmospheric carbon dioxide in parts per million (ppm) could reach the levels shown in the accompanying table. The CO2 concentration in the year 2000 was greater than it had been at any time in the previous 160‚000 years. Year 2000
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GREENHOUSE EFFECTS IntroductionThe greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases‚ and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere‚ it results in an elevation of the average surface temperature above what it would be in the absence of the gases.[1][2] Solar radiation at the frequencies of visible light largely passes through the atmosphere to
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This essay is going to look at euthanasia. This will include an analysis of the theories and principles which guide healthcare practice and decision making‚ a discussion of the relevant codes of professional practice and the legislation that may guide practice and decision making. This essay will also include an evaluation of the effects of the ethical issue for the individual concerned‚ their family‚ health care workers and for wider society. Ethics are the principles on individual uses‚ in order
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The greenhouse effect‚ first discovered by Joseph Fourier in 1824‚ and confirmed by Svante Arrhenius in 1896‚ is the process by which an atmosphere warms a planet. The term greenhouse effect may be used to refer to two different things nowadays: the natural greenhouse effect‚ which refers to the greenhouse effect which occurs naturally on Earth‚ and the enhanced greenhouse effect‚ which results from human activities. While the greenhouse effect is a natural process‚ the enhancement of this process
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Seder Research Paper 3/27/13 Air pollution and greenhouse gases are the reason for the planet as it is today; the reason why we see campaigns flooding the media informing us to ‘switch off’‚ ‘save the planet’ and ‘turn down the heat’ and the reason why the government is trying to develop a successful scheme‚ such as the carbon tax scheme‚ to reduce air pollution caused by major industries. Air pollution and greenhouse gases are the two immediate causes of global warming and climate
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Introduction: The presence of greenhouse gases in the Earth’s atmosphere last year reached its highest levels since pre-industrial times‚ a report released by the United Nations World Meteorological Organization (WMO) warns recently. Even if we managed to halt our greenhouse gas emissions today‚ and this is far from the case‚ they would continue to linger in the atmosphere for decades to come and so continue to affect the delicate balance of our living planet and our climate. The latest
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Well‚ based on my research‚ wind energy is the result of the sun’s energy interacting with the earth’s surfaces. It is also an ideal renewable energy source that is infinitely sustainable; pollution free; doesn’t use fuel; and doesn’t produce greenhouse gases‚ toxic or radioactive waste. This type of energy is considered a green power technology because it has minor impacts on the environment. When using wind to generate electricity we use machines known as turbines and this turbines use blades
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pens when greenhouse gases (carbon dioxide‚ water vapor‚ nitrous oxide‚ and methane) trap heat and light from the sun in the earth’s atmosphere‚ which increases the temperature. This hurts many people‚ animals‚ and plants. The greenhouse effect is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere. This is like when heat is trapped in a car. On a very hot day‚ the car gets hotter when it is out in the parking lot. This is because the
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Greenhouse Effect When one starts a car or burns wood‚ the last thought on their mind is the consequences to these actions. Unfortunately‚ the daily dangers to earth are not widely know. Due to the constant change of society‚ this planet must cope with various problems. One of the most important ecological structures is the ozone layer. The same shield that protects us from the sun ’s deadly radiation‚ can also act as a blanket engulfing us in heat. This situation is know as the greenhouse effect
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