... meltdown if the surface mass balance goes negative. Presently during summertime, warming of Greenland and shrinkage of the Greenland ice sheets contributed an estimated 1.9–3.0 m to sea level, although a widespread ice cap remained (Otto-Bliesner et al., 2006). Broadly consistent with this, future projections suggest a GIS threshold for ... negative surface mass balance resides at 3°C local warming (above preindustrial) (Lenton et al., 2009). Greenland ice sheets can contribute almost 16.5-53.8cm to global sea level rise just this century alone depending on the rate of its decay (Pfe...

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... blames this on Mother Nature, which we have no control over. It is not something we can change or make improvements to. "Larsen B ice shelf was 200 meters thick, with a surface area three times the size of Hong Kong. Around 500 billion tons of ... ice collapsed in less than a month" (Stott). The West Antarctic Ice Sheet is doing the exact opposite of Larsen B. Instead of becoming thinner, it is thickening. Scientists believe that this ice sheet has halted its retreat. With this evidence, it shows that the ... continent of Antarctica has many different climates and does Esposito 4 not r...

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... had increased about 0.5 degrees C since the late 19th century (within a range of 0.3 and 0.6 degrees C). The IPCC used this and other data gathered from fossil records, ice core drillings, tree ring analyses, marine sediment cores and the like to develop global weather models designed to account for past global temperature changes and predict future temperature scenarios. Prominent ... temperature maps. Several scientists have taken measurements over the past 5 years that also suggest that "heat islands- caused by urbanization have distorted thermometer readings. Several studies of ice c...

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... heat the atmosphere. They found that "levels of human-sourced emission dwarf anything produced by even the largest recent eruptions (e.g. Krakatoa) and the ice-core record shows that, while records of past massive eruptions are preserved as layers rich in volcanic dust and sulphur dioxide, there are no ... areas are the most attractive for oil companies, because they propose uncurtailed production of oil and gas. On the other hand, the process of ice removal is also a sphere of concern (Greens Call New Oil, 2005), because it ruins ecosystem of the region and resulted in warmer ... treatm...

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... of seas. As the earth gets warmer, there will be a rise in the average water level of the oceans. Two factors will cause this rise: thermal expansion and melting polar ice caps. As water is heated, it expands, or increases in volume. According to theory, global warming could cause thermal expansion of the ocean waters, which in turn would cause sea ... rest will come from the melting of glaciers. Glaciers are large, thick masses of slow-moving ice that persist from year to year. They cover about a tenth of the earth's land surface. The vast ice sheets of Antarctica and Greenland account...

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... of seas. As the earth gets warmer, there will be a rise in the average water level of the oceans. Two factors will cause this rise: thermal expansion and melting polar ice caps. As water is heated, it expands, or increases in volume. According to theory, global warming could cause thermal expansion of the ocean waters, which in turn would cause sea ... rest will come from the melting of glaciers. Glaciers are large, thick masses of slow-moving ice that persist from year to year. They cover about a tenth of the earth's land surface. The vast ice sheets of Antarctica and Greenland account...

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... of the eastern two-thirds of the United States in 1999. Coastal regions, where half the human population lives, will feel the adverse effects of rising sea levels as the ice caps melt under rising ocean temperatures. If the present melting continues, the sea could rise as much as 6 feet by the middle of the next century. Melting glaciers, early ... ice thaw rising global temperatures will speed the melting of glaciers, and ice caps, and cause early ice thaw on rivers and lakes. The area of the Arctic covered by sea ice declined by about 6 percent between 1978 and 1995. Arctic ice thickn...

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... is just another part of a natural cycle. (Smith 5) One scientist even mentioned that the temperature increase might be a rebound from a slight Ice Age in 1950- 1980. (Parsons 5) There are many causes behind global warming. Countless years of research have been devoted to pinpointing the specific ... period of warmth until 1950. Starting in 1950 and ending in 1980 global temperature models showed a decrease in the average temperature suggesting another Little Ice Age. Carbon dioxide levels have also decreased having people think that maybe the temperature and CO2 levels have something in...

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... the biotic world primarily through a process known as photosynthesis, which will be explained fully later on. It returns to the atmosphere through respiration, decay and burning. A unique process known as ice-core research has allowed scientist to accurately estimate levels of gases in the atmosphere for nearly the last 1 million years. Put simply ... , ice-core research involves drilling deep into the glacial ice in places such as Greenland and Antarctica and analysing the air trapped in the ice. This research shows that carbon dioxide concentration in the atmosphere has remained relati...

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... years. At the same time, Europe was hit by an extraordinary cold spell: The Thames river in London froze, glaciers advanced in the Alps, and sea ice increased dramatically. An earlier centuries long surge (indicated by tree ring studies) was shown to have an opposite effect. The Vikings were able to settle in ... . To think that humans are the only possible reason for changes in this planet is not only arrogant, but foolish. Tree ring records and ice core sample dating back millions of years show us that this planets climate has never stayed the same for long. The Earth has gone through ...

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... in this model "completely disregards two of the major climatic eras that occurred over the last millennium, turning the Medieval Warm Period and Little Ice Age into non-existing events, and shows only a slightly linear cooling trend in temperatures until 1900 AD where an extreme increase is observed ... with before. Ironically, the big fear during the 1970's that became over sensationalized in the media was global cooling and the possibility of another Ice Age, while just a few years earlier during the 1950's, the consensus in the news was global warming. The problem with the media in .....

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... fact it is a true planetary emergency" (11). This is a claim of fact because Gore uses scientific data to express the planetary emergency. For example, he discuss that the polar ice caps are melting and that if this continues it could "raise the sea level worldwide by more than 20 feet" (12). Rising water levels may seem insignificant, but ... small to face difficult times in the future as their "shells would instantly dissolve in the newly acid ocean water" (12). If people didn't care about the melting ice caps, Gore expresses the concern of all life in the ocean, which affects directl...

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... -wide concern. 3.2 Small Average Global Temperature Can Have A Big Impact Just a few degrees increase in the earth's temperature can cause droughts and crop failures, ecosystem imbalances, as well as melting ice caps causing sea levels to rise. The best estimates by the CSIRO predict annual warming over Australia by 2030 to be ~1 °C. (Climate Change in Australia CSIRO Report) WWF's report &tilde ... they died, it implied oxygen levels were low and signaled mine workers to get out. Satellite observations show the arctic sea ice decreasing, and projections for the rest of the century pred...

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... its 100,000 year trip. The Earth's tilt also changes just a few degrees over a period of 40,000 years or so, but enough to change the position of the polar ice caps relative to the Sun. Finally, the procession of the equinoxes also moves the poles closer to or further away from the Sun over a period of approximately 23,000 years ... studied and the idea of global warming was first introduced. But, during 1940 through the 1970's, worldwide cooling dampened scientific interest in the greenhouse effect. Some climatologists even predicted a new ice age. So in light of all this evidence, is ...

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... of the earths biosphere into disharmony, ultimately risking human and wildlife life. The increased temperature could result in the melting of the artic ice caps. As Ellen Fast of the Environment says, "Recent satellite surveillance indicates that the ice cap at the North Pole has been retreating at a longterm rate of about 3 percent per decade. More recently, almost 1.2 million square kilometers of ... ice melted away between 1978 and 2000 (a loss of 9 percent per decade). This area is five times the size of Great Britain." (Fast. 7). The increase of green house gases in the ... ...

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... continues at the current rate" (Effects). A section, larger than the state of Rhode Island, around 40 percent of the 12,000 year old ice shelf in Antarctica - Larson B - collapsed in March of 2002 (Antarctic). "The area covered by sea ice [in the Arctic Ocean has] declined by about 6 percent from 1978 to 1995" (Global, Impact). In the past several decades a 40 percent ... decline in Arctic Sea-Ice has been measured (EPA, Impacts). "During 82 years on record, four out of the five earliest thaws on the Tanana River occurred in the 1990's" (Global, Impact). With the melting ... ...

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... , in theory, one of the greatest threats to test the capabilities of mankind. Its effects are predicted to be catastrophic: dramatic climate changes, leading to the melting of the polar ice caps and great rises in sea level. This could flood islands and cause major life loss. Diseases are likely to spread more easily due to rises in temperature. Natural systems ... of many inches. But as global temperatures continue to increase, it is assured that mountain glaciers, as well as the great masses of ice and snow that cover Greenland and the continent of Antarctica, will melt. As the ice cov...

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... the depleting ozone layer due to chemicals such as CFC's, it's warming the planet up at an alarming rate. With the warming of the planet comes the melting of the ice caps and that raise's the water levels around the world. Although this is happening slowly, already 10 pacific islands have been lost and the natives have had to move of ... , nautical society held together by determination and ingenuity. The inhabitants of this once-flourishing planet cling to life on incredible floating cities. Centuries of global warming have caused the polar ice caps to melt, flooding the earth as civili...

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... , in theory, one of the greatest threats to test the capabilities of mankind. Its effects are predicted to be catastrophic: dramatic climate changes, leading to the melting of the polar ice caps and great rises in sea level. This could flood islands and cause major life loss. Diseases are likely to spread more easily due to rises in temperature. Natural systems ... of many inches. But as global temperatures continue to increase, it is assured that mountain glaciers, as well as the great masses of ice and snow that cover Greenland and the continent of Antarctica, will melt. As the ice cov...

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... may not seem like very much, over time these small numbers add up, and even now we are seeing the affects of global warming in the melting of our polar ice caps. This negatively impacts the animals that previously inhabited these frozen land masses by taking away their homes and the very ground that they walk on; the melted remnants of ... these ice caps also add water to the ocean, thus increasing global sea levels. Our actions are directly impacting our environment, and contribute to the global phenomenon of climate change. At this ... ...

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... . Warmer climate leads to more precipitation and evaporation, causing some regions to become wetter while others will become significantly dryer. Global Warming is already having noticeable effects on the environment. Ice on rivers and lakes are breaking up quicker, glaciers have shrunk, animal ranges have shifted and trees are flowering sooner. Predictions that scientist previously made are now starting to become ... reality. There has been a loss of sea ice, accelerating sea levels, longer, and more intense heat waves. Different regions of the world such as North America, Latin America...

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... gases to a lower level, global temperatures could rise 1.6 to 6.3 degrees Fahrenheit by the year 2100. This would represent the fastest rate of global warming since the end of the last ice age more than 10,000 years ago. With the increased warming of the Earth it could lead to catastrophic events that could endanger living things on our planet. One event ... enough money to pay the price for food. Another event that would occur from global warming is the drastic rise in sea level. As the Earth warms up, the polar ice caps will start to melt. This would put immense amounts of water into ...

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... to modest avail. John L. Daly from Britain has been working for years on the greenhouse effect and has come to some intriguing conclusions. To paraphrase Daly, I have lived through the `ice age' of the 1970's, the `nuclear winter' of the 1980s, and now the `global warming' scare of the present. It is my view that this industry has, acted against the ... that might be just as convincing as the global warming trend figures. Not to be redundant, but first off if the overall temperature of the world were rising then the ice caps would melt and the sea level would rise. However, it has not. ...

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... gases to a lower level, global temperatures could rise 1.6 to 6.3 degrees Fahrenheit by the year 2100. This would represent the fastest rate of global warming since the end of the last ice age more than 10,000 years ago. With the increased warming of the Earth it could lead to catastrophic events that could endanger living species on our planet. One event ... enough money to pay the price for food. Another event that would occur from global warming is the drastic rise in sea level. As the Earth warms up, the polar ice caps will start to melt. This would put immense amounts of water into...

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GLOBAL WARMING Introduction Global warming is a topic that is often talked about today. Whether is about the Kyoto accord or the melting of the polar ice caps, it is impossible for a person who is not deaf or blind and has an IQ higher that a chimpanzee to miss it. However, before we jump to conclusions, we must ... will be no crop yield there. Second, there will be a vast increase in deserts as well as a vast shortage of water. Third, an increase in Temperature will cause the Polar ice caps to melt and so vast flooding around the world will occur (Vancouver Island will cease to exist). Many...

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