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In general, global warming is the idea that the excessive burning of fossil fuels will lead to warmer global temperatures, and will, in turn, have a major impact on the Earth's systems. Enotes has extensive information on this topic .. please use the following links to further answer the question.
Global warming is part natural climate change process of Earth's evolution, but it is speeding up because of the pollution we have created. Global warming has increased at a very rapid rate due to carbon emissions that are put into our atmosphere and help to trap in sunrays instead of those sun rays being expelled back onto space. So when this happens our Earth is basically being cooked, and its causing distratous effects worldwide such as ice caps melting which directly is effecting polar bears right now. Also small islands, especially in the Pacific are already seeing signs of global warming by many of their crops being destroyed by salt water. Many of the atoll islands in the Pacific will be under water in just a few decades, and at this rate it could happen in one decade.
Global warming refers to the phenomenon of gradual increase in average temperature of the earth. This phenomenon, unless controlled effectively, poses great danger to the whole humanity in very near future - that is by about year 2050. The average temperature of earth had remained stable for about 10.000 years till about start of industrial revolution. But after that the temperature has been rising due to rapid advancement in industrialization and improvement in economic condition of people, and with that their life styles.
Since dawn of industrial revolution the average earth temperature has risen by 0.4 degrees, and is currently rising at much faster rate. At this rate the average global temperature will rise by 2 degrees by 2050. If that happens there will be irreversible changes in earths environment causing vast devastation. The ice in the polar region will melt and shrink the size of polar caps. This will lead to rise in levels of water in seas and submerge large mass of land along coastal region.
Global warming is literally the temperature here on Earth rising. It is occurring but scientists disagree on why the Earth is warming up. Some scientists say that it is happening because it is a naturally occurring event. Other scientists will argue and say that humans are causing global warming. For example, it is true that ice caps are melting and as this happens the sea levels will rise. There are many things that we can do to help the environment and hopefully decrease the rate of global warming.
Global warming is the overall increase in temperatures around the globe. This does not mean that all temperatures will be higher than usual at every moment and in every place. Instead, it means that the overall average of temperatures across times and places is rising. The kind of global warming that we particularly worry about is called "anthropogenic." This is a kind of global warming that is caused by the activities of human beings. We worry about this more because it is unnatural and because we feel that we ought to do something to stop it before it changes our climate dramatically.
Climate change is the more general term describing alterations in the earth's temperature and climate. Global warming is a term coined in 1979 according to NASA, a scientific group that prefers the term "climate change" to "global warming". One reason NASA holds to this preference relates to the predicted impacts of a changing climate:
But temperature change itself isn't the most severe effect of changing climate. Changes to precipitation patterns and sea level are likely to have much greater human impact than the higher temperatures alone.
The increase of the carbon dioxide in out atmosphere. This increase causes the temperature on the earth to increase causing a climate change.
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