The earth is about four billion years old, within the span of these four billion years; the earth has become accustomed to various transitions and dissimilar geological and environmental permutations. The Ice age period has been the subject of much debate regarding these various transitions. As the rate at which geological disasters on earth continue to intensify we begin to ask ourselves whether it is possible for an ice age to spontaneously occur overnight. Nonetheless, In order for such a disaster to persist, massive improbable geological events would have to occur and graft coherently which is evidently and scientifically impossible. The notion that an ice age can occur overnight is implausible for the reason being that: Global warming is on a evidential rise , chances of catastrophic volcanic activity as deteriorated and the earth's orbit is at a period of solar radiation absorption.
Firstly, there are copious requirements that must be adhered to before an ice age can transpire. The most integral pieces of these requirements are: the declination of earth temperature levels and formation of gigantic glaciers; where, gigantic glacier formation is dependent on temperature levels. In addition, gigantic glaciers and ice sheets cannot develop if global temperatures continue to increase. In fact, recent studies have shown that average global temperatures have augmented over the past century: “The coldest conditions of the last 560 years were between AD 1570 and 1730, and in the nineteenth century. Unusually warm conditions have prevailed since the 1920s, probably related to a relative absence of major explosive volcanic eruptions and higher levels of greenhouse gases"(Bradley & Jonest, 1993, p.1). As, the earth's temperature c...
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...tly with the previously presumed events in the span of a night, which is astronomically in factual. According to the Milankovitch cycles principles, it takes roughly about 100,000 for the orbit to move from low to high.
To conclude, global temperature decreases, massive volcanic activities and astronomical fallacies must all occur coherently within hours in order for a sudden ice age to persist overnight. Nevertheless, the likelihood of these events taking place coherently is close to impossible simply because, they contradict each other and require distinctive duration periods to take place effectively. Hence, the notion that an ice age can occur overnight is implausible for the reason being that: Global warming is on an evidential rise, chances of catastrophic volcanic activity have deteriorated and the earth's orbit is at a period of solar radiation absorption.
In the essay, “Global Warming is Eroding Glacial Ice,” Andrew C. Revkin argues that global warming is the primary cause for many of the world’s natural disasters; including flash floods, climate change, and the melting of the polar ice caps. He includes multiple accounts of expert testimony as well as a multitude amount of facts and statistics to support his theory that global warming is a threat to the world. However, in the essay “Cold Comfort for ‘Global Warming’,” Phillip Stott makes the complete opposite argument. He argues that global warming is nothing to be worried about and the melting of the polar icecaps is caused by the interglacial period we are currently in. After reading both of these essays and doing extensive research on both viewpoints, I completely agree with Revkin that global warming is an enormous threat to our world today. My research not only helped me to take a stand but it also showed me the invalidity in Stott’s essay.
The disaster theory, Gould claims, is an example of good science. It has testable evidence and has an impact on studies in other fields of science, it develops further and explains why the extinction of dinosaurs occurred simultaneously with other events. This theory suggests that a large comet hit the Earth sixty five million years ago, causing the cloud of dust to rise into the sky and to block sunlight. As a result, world temperatures went down significantly, the ice age bega...
Stephen Spender's "Epilogue to a Human Drama" and Toge Sankichi's "Dying" are poems detailing the destruction of two cities, London and Hiroshima, respectively, during or after World War II bombings. Spender wrote "Epilogue to a Human Drama," hereafter referred to as "Epilogue," after a December air raid of London during the Battle of Britain, which ravaged and razed much of England from Summer 1940 until Spring 1941. Sankichi wrote "Dying" from his vivid recollections of the surprise atomic bombing of Hiroshima, which decimated the Japanese city in less than a second. Both the Battle of Britain and Hiroshima were horrible, senseless, and vicious incidents that exacted gave tolls on innocent victims. Spender endured the Battle of Britain, and Sankichi experienced the horror of Hiroshima. The poets' responses differ greatly in style and perspective, but each work clearly defines the ramifications of atrocities such as those committed against Spender, Sankichi, and the populations of London and Hiroshima.
According to the available data and calculations, the global mean rate of seafloor spreading was faster 100 million years ago than in the present. Moreover, the absence of large polar ice sheets in this time period indicates that the global climate was warmer than it is today. Such correlation between the seafloor spreading rate and global climate seems to support the BLAG hypothesis, which suggests that the rate of the carbon dioxide input to the atmosphere was higher 100 million years ago than in the present. The BLAG hypothesis may also explain the global cooling period between 55 and 15 million years ago, when there was a general decrease in the seafloor spreading rate. However, geologic evidence shows that the greater global cooling occurred between 55 million years ago and the present, which is not consistent with the BLAG hypothesis (Raymo and Ruddiman, 1992). The historical records of the ocean chemistry, specifically of the varying calcium and magnesium concentrations, also do not have an observable association with the seafloor spreading rate as expected from the BLAG hypothesis (Kump, 2008). Furthermore, the increased chemical weathering in the past 40 million years of global cooling seems to contradict the idea of chemical weathering being a negative feedback mechanism to regulate climate changes (Raymo and Ruddiman,
People are responsible for higher carbon dioxide atmosphere emissions, while the Earth is now into the Little Ice Age, or just behind it. These factors together cause many years discussions of the main sources of climate changes and the temperature increasing as a result of human been or natural changes and its consequences; even if its lead to the global warming, or to the Earth’s cooling. In their articles, “Global Warming Is Eroding Glacial Ice” by Andrew C. Revkin and “Global Warming Is Not a Threat to Polar Ice” by Philip Stott, both authors discuss these two theories (Revkin 340; Stott 344). Revkin is right that global warming is taking place. Significant increase of carbon dioxide in the atmosphere is due to human activities combined with natural factors such as volcanic emissions and solar radiation – all together they lead to climate changes and temperatures rising. At the same time, other factors such as deforestation contribute to environmental changes for some glaciers not less than air pollution. However, during global warming not all regions of the planet are affected in the same way, local warming and cooling are both possible during these changes.
... might not develop back to normal conditions, in which case the demise of the Greenland ice sheet and the associated sea-level rise might be irreversible. For this reason, the Greenland ice sheet is often described as a relict ice mass. It survived the current Holocene interglacial solely because it creates its own cold surface-climate because of its elevation. The last time Greenland temperatures were several degrees higher than today was the last interglacial 125,000 years ago. Ice core evidence for a smaller ice sheet is consistent with the observation that sea level then was several meters higher than today. At that time, the ice sheet did not disappear completely, probably because the warming was not strong enough and did not last long enough. The ice sheet was probably saved from extinction by the onset of the last glacial period several thousand years later.
With talk of global warming still being threatened by scientists and governments, the depletion of the polar ice is a major concern. Many experiments have been done to monitor current ice levels and predict future ice levels. Since then scientists have tried to discover what would cause the melting of our polar ice. One major concern is that the melting of the polar ice would create extreme flooding for all costal and island inhabitants. Is the polar ice melting and could greenhouse gases be the cause?
Currently, scientists believe that once an ice age has been triggered, oceanic circulation currents can change and the mixing of the oceans cools the southern hemisphere. As glaciers begin to accumulate in the northern hemisphere, solar heat is reflected off the snow which leads to further cooling.
Throughout history climates have drastically changed. There have been shifts from warm climates to the Ice Ages (Cunningham & Cunningham, 2009, p.204). Evidence suggests there have been at least a dozen abrupt climate changes throughout the history of the earth. There are a few suspected reasons for these past climate changes. One reason may be that asteroids hitting the earth and volcanic eruptions caused some of them. A further assumption is that 22-year solar magnetic cycles and 11-year sunspot cycles played a part in the changes. A further possibility is that a regular shifting in the angle of the moon orbiting earth causing changing tides and atmospheric circulation affects the global climate (Cunningham & Cunningham, 2009, p.205). Scientific studies suggest that all these played a role in past global warming and cooling periods. Today, however, there is a lot of conflict on whether humans are causing a global warming that could be disastrous to humans and all species of plants and animals on this earth. This paper will first explain the greenhouse effect, then take a look at both sides argument, and, finally, analyze the effect of global warming on world-wide sustainability
Several natural catastrophes happen over the course of the novel; the dogs driving the sheep off the cliff, the fire, the sheep feeding upon clover, the storm. What role do these events play with respect to the character of Gabriel. Set in Wessex, a fictional location in rural England, Far From the Madding Crowd is a nineteenth century novel, based around the character of Bathsheba Everdene, a young, bright woman who arrives in the village of Weatherbury, to work the dilapidated farm that is her. inheritance from her uncle. She is a beautiful heroine, a youthful.
The movie cited the cause of the global climate change to be the rise in temperature due to greenhouse gasses. The warmer temperatures caused the polar ice caps to melt, and the increased amount of freshwater in the ocean disrupted the North Atlantic Current. The North Atlantic Current is what is responsible for the warm temperatures in the Northern Hemisphere. With the current disrupted the Northern Hemisphere went into an ice age. In real life, the polar ice caps are melting, but at a rate not even close to that of the one represented in the movie. Even if the ice was melting at a quicker rate, the chance that it would throw off the North Atlantic Current is slim to none. Also, there is no way that the ice would melt so quickly that a change that drastic would be made.
The ice age is a topic of wonder for many. The scientific meaning is regions of snow along with cold enough temperatures to keep the snow over an extended period of time. The last ice age was approximately 12,000 years ago and consisted of the northern sections of the earth. The northern continents were practically covered with thick layers of ice and glaciers. How do scientists determine if a glacier is part of an ice age or just a glacier development? Glaciers during an ice age come up to sea level and continue throughout the year and cover an abundance of land. These glaciers carry with them remnants of animal life, rocks, and dirt.
Scientists think this was thanks to the combination of a super-volcano erupting and the ice-age.
Climate changes originating from changes in Earth's orbit and changes of its axial tilt are proposed causes of glaciations according to Esmark, in a paper published in 1824. There are three important types of affirmation for ice ages namely; chemical, geological, and paleontological.
The earth is a complex system, which continues to evolve and change. Climate change and global warming are currently popular in the political agenda. But what does “climate” really mean? The difference between weather and climate can be conveyed in a single sentence: “Climate is what you expect; weather is what you get.” Based on research of the geologic record, we know that climate change has happened throughout Earth's history and at present, ever-increasing evidence points to the roles that humans play in altering Earth systems. The Earth and its atmosphere receive heat energy from the sun; the atmospheric heat budget of the Earth depends on the balance between incoming solar radiation and outgoing radiation from the planet; which has been constant over the last few thousand years. However present evidence seems to suggest that the recent increase in temperature has been brought about by pollution of the atmosphere, in particular the release of huge amounts of carbon dioxide, mostly through Anthropogenic Forcing (human activity) and other various internal and external factors. I...