gGlobal Warming Jump to: navigation‚ search Global mean surface temperature anomaly 1850 to 2006 relative to 1961–1990 | Mean surface temperature anomalies during the period 1995 to 2004 with respect to the average temperatures from 1940 to 1980 | Global warming refers to the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. The global average air temperature near the Earth’s surface rose 0.74 ± 0.18 °C (1.33
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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 is the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. Global average air temperature near the Earth’s surface rose 0.74 ± 0.18 °C (1.3 ± 0.32 °F) during the past century. The Intergovernmental Panel on Climate Change (IPCC) concludes‚ "most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas
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Global warming is caused primarily by carbon dioxide from burning coal‚ oil and gas. Certain gases that trap heat are building up in Earth’s atmosphere. The primary culprit is carbon dioxide‚ released from burning coal‚ oil and natural gas in power plants‚ cars‚ factories‚ etc. (and to a lesser extent when forests are cleared). The second is methane‚ released from rice paddies‚ both ends of cows‚ rotting garbage in landfills‚ mining operations‚ and gas pipelines. Third are chlorofluorocarbons (CFCs)
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Throughout the world the issue of global warming has become an increasingly important issue. Global warming has been an issue that has been heatedly debated for many years. Scientists all over the world have been debating weather global warming actually exists. If it exists some scientists believe it is natural. While others believe it is caused by humans. Global warming is defined as an average increase in temperature in the atmosphere near the earths surface and in the troposphere. Which can
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Evidence:There is a lot of evidence pointing to the futures problems with global warming. First is the rise in temperature we have already had in the last ten years alone the average global temperature has risen more than one degree F. Based on estimates last year(2006) by NASA’s Goddard Institute for Space Studies‚ 2005 was the warmest year since reliable‚ widespread instrumental measurements became available in the late 1800s. About three-quarters of the anthropogenic (man-made) emissions of CO2
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15 Dec 2011 Global Warming/Climate Change Before we get into the specifics‚ lets define the terms global warming and climate change. Global warming or the greenhouse effect is a more specific term that refers to a gradual increase in planet-wide temperatures which is now well documented and accepted by scientists as fact. It is the warming of the lower atmosphere which is a result of the increase of a number of gases that have been classified as greenhouse gases. It is a specific type of climate
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Global Warming In 1995 a popular science fiction movie called Water World‚ starring Kevin Costner came out. The plot of this movie is based on a distant future where the polar ice caps have melted‚ and the sea level has risen hundreds of meters covering all the continents and humanity is forced to live on abandoned ships and floating fortresses scavenging for supplies. Of course‚ this was only a science fiction movie‚ and in 1995 the idea of the polar ice caps melting was too far for society to
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GLOBAL WARMING One of the most strongly debated topics on our earth is the issue of climate change. Global warming and climate change is refer to an increase in average global temperatures. Natural events and human activities are believed to be contributing to an increase in average global temperatures. This is caused primarily by increases in “greenhouse” gases such as Carbon Dioxide (CO2) I. Effect There are two effects of global warming which is the environmental and social changes
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Global warming Global warming is the increase in the average measured temperature of the Earth ’s near-surface air and oceans since the mid-20th century‚ and its projected continuation. The average global air temperature near the Earth ’s surface increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the 100 years ending in 2005.[1] The Intergovernmental Panel on Climate Change (IPCC) concludes "most of the observed increase in globally averaged temperatures since the mid-twentieth century is very
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