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Earth structure and processes
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I yearn for a meaningful, adventurous life. I dream to protect people from disasters. It all began with my rather active family, coupled with the wonderful forest reserves in Malaysia, so frequent road trips were inevitable. However, one trip stands out the most. We went through this majestic arch at Langkawi Island and I felt so proud that I could use what Geography in lower secondary taught me to deduce how it was formed for the first time, that is by prolonged erosion. Subsequently, my interest in Earth Science piqued so I tried identifying the type of rocks in my collection to no avail until much later. I was also prompted to read “Why Geology Matters”. Understanding the processes and coincidences that shaped earth overwhelms me as their grandeur belittles us who only existed for a tiny fraction of Earth’s 4.5 billion years. Studying Earth makes sense since she still has so much left undiscovered that I think, can help further studies into plate tectonics and past geological record for indicators that might aid in more accurate predictions of geohazards especially earthquakes and volcanoes, along with potential catastrophes like tsunamis that is linked to them. Thus, thousands or even millions of lives can be saved. Knowing …show more content…
Undeniably, we must mitigate it and what better way to do so by studying Earth herself? I read “The Two Mile Time Machine” hoping to have a more in depth knowledge on this issue and it was revealed that many climate jumps occurred throughout Earth’s history, and that our climate is predominantly governed by the Earth’s systems. I wish to monitor the changes and study the consequences of these events through things like models of volcanoes and climates, geological records stored in ice cores and rocks to prepare for the worse and raise awareness before the situation turns
Earthquakes play a major role into understanding the composition and materials that exist within the Earth (Merali and Skinner, 2009, p.252). Earthquakes are the main source of insight into the inner workings of the earth, due to the nature of the seismic waves they produce. P and S waves are reflected and refracted at different boundaries within the earth, and this enables seismologists to make inferences about the internal composition and structural of planet Earth. (Merali and Skinner, 2009, p.252).
Earthquakes are a natural part of the Earth’s evolution. Scientific evidence leads many geologists to believe that all of the land on Earth was at one point in time connected. Because of plate tectonic movements or earthquakes, continental drift occurred separating the one massive piece of land in to the seven major continents today. Further evidence supports this theory, starting with the Mid-Atlantic ridge, a large mass of plate tectonics, which are increasing the size of the Atlantic Ocean while shrinking the Pacific. Some scientists believe that the major plate moveme...
Outside of education, my hobbies have extended the experiences I have developed in Geography. On a recent fieldtrip I investigated the impact of skiing on the landscape at Mont Lozère Ski Resort in the Cévennes, Southern France. I found this research particularly interesting as I could consider my own impact at locations where I have skied. In addition to this, my keen interest in rock climbing has given me the chance to climb outdoors in locations such as the Honister Slate Mine Via Ferrata in the Lake District, reaffirming me of my love of the outdoors and desire to understand the
Boom! A once ice-capped mountain peak explodes as ash fills the air. “‘Vancouver, Vancouver, this is it!’”Those were the last words of expert geologist David Johnston (Gunn 561). In 1980, Mount Saint Helens of the state of Washington erupted, filling the air with ash and causing mudflows powerful enough to lift tons. It decimated everything in its path. The eruptions, mudflows, and ash caused great damage on the landscape, yet it gave us information on how catastrophes happen and how they affect society and the surrounding landscape. The data acquired can also help us understand the way the landscape was formed. Mount Saint Helens caused much damage, but also helped people understand the science behind it.
Thesis Statement: Due to the limitations of global climate models used as predictors for future calamitous climate changes and the lack of fact-based knowledge regarding the climate, we should avoid geoengineering because of the unknown and possibly devastating consequences.
One of the most compelling and difficult environmental problems society faces today is climate change. People do not realize how much the environment has changed for the worse in the last ten years, until they are told that the last two decades of the 20th century have been the hottest in the last 400 years, according to climate studies (Conserve Energy Future). Today, the carbon dioxide levels have reached 396.81 parts per million (ppm). “Carbon dioxide (CO2) has also increased over the last 100 years-- from about 300 ppm to 370 ppm. Interestingly, the majority of these additions have occurred in the last 50 years, when temperature increases have been the slowest” (geocraft).
Our world is always changing, so is our climate. Some changes are apparent, others not so much. Climate change is an important issue of concern in the twenty-first century. Environment, if it changes at all, evolves so slowly that the difference cannot be seen in a human lifetime (Wearth, 2014). Mostly all scientists predicted that it would take thousands of years for the planet to warm up due to emissions of carbon dioxide from fossil fuels called greenhouse gases. But in the past 200 years, things began to change. The rate and the amount of warming that is happening on this planet are unprecedented. Wearth says, “People did not grasp the prodigious fact that both population and industrialization were exploding in a pattern of exponential
Psychology is the study of the mind and the behavior of mammals. Geology is a science that deals with the history of the earth and its life, recorded in rocks. The earth is consistently moving its tectonic plates. Therefore, there may be over 100 earthquakes a day; most of these earthquakes go unnoticed by humans on the crust of the earth. Other earthquakes for example, the one in 2011 located in Japan and the Loma Prieta earthquake of 1989 (Earth- Marshak). Unfortunately, many people died in horrific ways during these deadly earthquakes, leaving thousands diagnosed with psychological disorders such as, Posttraumatic Stress Disorder and Specific Phobias directly related to the natural environment of the earth.
I have chosen to major in the geosciences because I am enthralled by what can be learned and explored in this discipline. With my first introduction to the Geology, I was fascinated by what I was learning. I was previously an English major with a focus in creative writing who had no interest in the sciences whatsoever; I thought they were too constraining and would not mesh with my creative nature. However, I became so infatuated with my geology classes that by the end of the year I decided to change majors and minor in writing. I saw a way my two interests could blend.
My interest in geology started when I was a young girl and would follow my mom around while she ran errands. Along the way, I would constantly be stopping to look at the rocks outside of stores and businesses, picking up the ones I thought were the prettiest. At the time, I did not know that my quickly growing rock collection was the start of my love for geology, but as I got older, we began to learn about the Earth in our science classes, causing me to realize how much I loved our planet and all of its intricacies. In 8th grade, we began studying our rocks and minerals unit when my teacher took out his own moderate-sized collection. We each were able to take our turns examining the differences between each sample and recording it in
Motutara Island (stack) was produced by the formation of two caves on either side of the headland -- forming an arch and the roof slowly erodin...
Our planet is a powerful and unpredictable place; attempting to understand its behaviour and history for the benefit of others is why I want to study this field of science. A trip to America cemented my love for our planet. I remember travelling through Death Valley and thinking that it was alike to travelling on the surface of Mars. I found it inspiring to think that one of the richest cities in the world lays a stone’s throw away from such a desolate place. It’s a testament to humankind that we have progressed to the level where geology shouldn’t dictate where we establish ourselves; however, it is always a precarious situation when dealing with the Earth and decisions should never be taken lightly.
The truth is that the Earth is not experiencing rapid enough changes for all of that to be necessary (Salmon 25). Salmon also compared the global warming threat to a weekly weather prediction. He says that just like a weatherman is often wrong about the weather of the week, the predictions about Earth’s future weather are a little sketchy. If weather cannot always be predicted a few days in advance, then there is no way the claims of Earth’s weather over several years can be determined true (Salmon 24).
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...