Global warming refers to the rising average temperature of Earth’s atmosphere and oceans‚ which started to increase in the late 19th century and is projected to keep going up. Since the early 20th century‚ Earth’s average surface temperature has increased by about 0.8 °C (1.4 °F)‚ with about two thirds of the increase occurring since 1980.[2] Warming of the climate system is unequivocal‚ and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse
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Global warming There are already many natural disasters‚ for example earthquakes in Mexico or floods in Pakistan‚ probably the first effects caused by global warming. But that is just the beginning; the number of natural disasters will increase in the future. In my speech I tell you something about global warming and what we can do to prevent it. At first I define the term “global warming”: It is the change of the climate caused by the people for example the destruction of the ozone layer and the
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Jacqueline Sanchez Brad Stiles Research Paper Global warming is no longer a myth and as consumers of resources‚ the world has to change and conserve their energy usage. There are many things one can do‚ but informing others how to take these dire steps our world needs in order to survive and support humankind. With CO2 making up over 70 percent of our atmosphere‚ we need to focus not only on how to slow down its growth‚ but removal of it s existence from the atmosphere to the right level of
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Thesis: Global warming is a human induced phenomenon causing a dramatic rise in average global temperatures and posing a major threat to our planet and it’s ecosystems. Points of Evidence: The science is clear: Human activity is causing our climate to change. -When we extract and burn fossil fuels such as coal or petroleum‚ we cause the release of carbon dioxide (CO2) and other heat-trapping “greenhouse gasses” into the atmosphere. Though natural amounts of CO2 have varied from 180 to 300
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Abstract Global warming is a direct result of human activities on this planet. Our species have inhabited this planet for thousands of years but only since the 1900’s have scientists been able to measure the changes that we have induced on earth. It is estimated that temperatures have risen globally by about 0.9 degrees Fahrenheit‚ which may seem minor‚ but have caused physical changes on the planet (and potentially dangerous ones in the future). The “greenhouse effect” is a term many politicians
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challenges that global warming presents to both governments and business Introduction (250 word approx.) This essay discusses the challenges that global warming presents to both the government and also how they affect businesses. Many people think global warming is just the weather becoming warmer‚ but in fact this is not the case. Global warming makes the weather more unpredictable as some places become colder‚ some hotter‚ some more drier‚ some more wetter and so on. Global warming is defined as
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GLOBAL WARMING Probably the most worrying threat to our planet at the present time is global warming. The main factors resulting in the warming of the earth is the emission of CO2. CO2 damages the ozone layer and comes from several sources. The most problematic comes from the burning of fossil fuels from electric power stations. This releases thousands of tones of CO2 into the atmosphere every year. Another cause is the burning of gasoline for transportation. It continues to increase because
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Global dimming‚ a gradual reduction in the amount of global direct irradiance at the Earth’s surface‚ has partially counteracted global warming from 1960 to the present.[55] The main cause of this dimming is aerosols produced by volcanoes and pollutants. These aerosols exert a cooling effect by increasing the reflection of incoming sunlight. The effects of the products of fossil fuel combustion—CO2 and aerosols—have largely offset one another in recent decades‚ so that net warming has been due to
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come can we not do anything about it or at least try it? We’re all aware of the seriousness of this problem: CO2 emissions and other substances such as Nitrogen oxide‚ Hydrocarbons or Carbon Monoxide‚ are destroying our ozone layer and causing global warming to arise. In consequence‚ the greenhouse effect makes the world’s temperature to reach higher levels and lead to enormous disasters such as North Pole melting‚ Pollution... All right then‚ I know that each one of you here is perfectly aware of
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Global Warming So are we digging our own grave ? So what is global warming ? Earth is naturally insulated by the delicate balance of heat-trapping which is also called Green House gasses in the atmosphere. When the sun shines on the earth a part of that heat is absorbed‚ Keeping the Earth warm enough for us humans to live on ! But what went wrong ? Over the last centuary‚ we humans have been releasing more and more carbon dioxide and other heat trapping gasses into our atmosphere when we burn
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