Ocean mapping consists of different techniques and resolutions of quality all of which have benefits. 100% of the ocean seafloor has been mapped with a horizonal resolution of 1 to 12 kilometres by the Geosat and ERS-1 spacecraft (Smith and Sandwell 1997). However less than 10% of the global ocean has been mapped by sonar technology (NOAA 2018). Although the...
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We live on a blue planet, with oceans and seas covering more than 70 per cent of the Earth’s surface. Oceans feed us, regulate our climate, and generate most of the oxygen we breathe. We can make a long list of how the oceans and marine life are important to us. Oceans cover more than 70 per cent of the...
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What is ocean warming? Ocean warming is induced by rising levels of greenhouse gases preventing heat radiated from the Earth's surface from escaping as freely as it once did. The majority of the excess heat in the atmosphere is returned to the ocean. Since the 1970s, the oceans have absorbed over 93 per cent of the excess heat dispersed from...
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Forget about traveling outer space, we should focus on something much imminent to home. Exploring our ocean floors is to learn more about our planet. Simply because only five percent of the ocean has been explored, it also contains ways to advance medical treatment, preventing and future foresight on natural disasters. Only five, percent of the ocean floor has been...
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Ladies and gentlemen, esteemed guests, and fellow advocates for environmental preservation, Today, I stand before you to shed light on one of the most pressing issues of our time: ocean pollution. Through the power of storytelling, I aim to convey the gravity of this problem and inspire each one of you to take action to protect our oceans. Close your...
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Over the years, only less than twenty percent of the ocean of the Earth was explored. According to many scientists, humans know more about space than the oceans. For years they have been equipped with knowledge about what is beyond the atmosphere, what the stars look like, what is it made of, what the color of the moon and many...
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Oceans are large expanses of water that expand across more of the Earth’s surface than land. In recent decades, a surplus of harmful human activities has adversely affected marine ecosystems by increasing ocean pollution. Ocean pollution is the spread of harmful toxins and debris throughout ocean waters, which negatively affects surrounding ecosystems. Increasing ocean pollution influences the formation of dead...
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Let's talk about the continental shelf, slope, and rise! The continental slope is the seaward edge of the continental rise, which we will talk about later. Now, let's talk about the continental shelf! The continental shelf is a broad, comparatively shallow submarine deck of continental crust setting up the edge of a continental landmass. And lastly of the “continentals’, as...
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Executive Summary In order to meet a contract requirement Ocean Carriers must decide whether to purchase or not a 180000-deadweight tons dry bulk carrier for the price of 39 million dollars in order to lease the vessel. After careful analysis of both, the industry and exogenous factors we conclude that the purchase of the vessel is advisable only if we...
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Ocean acidification is the biggest problem facing the planet with impacts so severe it affects almost all aspects of life. From tiny, microscopic phytoplankton, to Australia’s breathtaking Great Barrier Reef, ocean acidification has the power to wipe out great deals of life here on this Pale Blue Dot we call home. Of course, it is no surprise that at the...
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Introduction Millions of people around the globe continue celebrating their achievements in the fields of technology, business, health care, and education. Certain steps have already been taken to improve the quality of life and create the best living conditions on the ground. However, society usually forgets that about 70% of the planet is covered by oceans that remain one of...
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The underwater environment consists of both biotic and abiotic sounds that closely related to reproduction and survival of marine organisms (Slabbekoorn et al., 2010).Biotic sounds are produced by living, non-human sources such marine mammals, fish and invertebrates, as for odontocetes (toothed whaled, dolphins and porpoises) where the sound generated by high-pressure air being blown over a bone structure called as...
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Intro Environmental change and management uses the concepts of environment, change, interconnection and sustainability to investigate the nature and extent of human-induced environmental changes that challenge sustainability While it is true that there are a lot of factors that influence the change in our environment such as pollution, degradation, erosion, alien introduction and climate change. The main one is human...
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Indian ocean has gained the world’s attention due to its strategic importance in terms of economic and geo-politic. It is the the third-largest of the world’s ocean. It is sirrounded by three lands on it sides, in the west by the eastern and soithern parts of Afroca and the south-western part of Asia, in the north by southern Asia and...
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Since the surface of the Earth is far from being even, the distribution of oceans is not quite equal between the two hemispheres. Taking a closer look at the map, one will see that the Southern Hemisphere (206 x 106 km2) has more water resources than the North one (154 x 106 km2) (Distribution of Water and Land Between Parallels...
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Crude oil (petroleum) is a highly complex mixture of organic compounds of which some 1.3 million liters enters the environment each year. Oil spills occur way to often causing a messy decontamination challenge to our environment. What is helping the ocean become cleaner and decontaminated? It’s a bacterium that is called Alcanivorax borkumensis that reacts rapidly when there is a...
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One major issue that’s currently happening in our nation that I’m interested in how pollution is affecting the ocean. Where does all this garbage go? It’s all dumped into the ocean. It affects all the marine animals and the whole ecosystem. It also affects people because when we fish for food in the ocean, most of the fish have plastic...
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Noise pollution from ships is the intense noise made from boats, ships engines, military SONAR and offshore developments which can cause serious acoustic trauma for marine animals. The Ocean is full of rich, diverse soundscapes of bubbles, grunts, clicks and chirps from a large variety of marine animals like dolphins, whales and a mixture of fish. The noise of ships...
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Ours, a water planet. The ocean covers 71 percent of the surface of the globe, and it constitutes over 90 percent of all habitable space on Earth. Its total volume is around 300 million cubic miles and its weight is approximately 1.3 million million million tons. No wonder that Arthur C. Clarke, scientist and writer, once remarked that it was...
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Global warming is an undisputed international problem. The discourse surrounding this issue has attracted disparate opinions from lawmakers, investors, and the public among others. One of the ideas and approaches that have been adopted is iron fertilization. Iron fertilization is a form of geoengineering, which involves the intentional introduction of the micronutrient iron into certain areas of the ocean with...
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Global Warming, you’ve probably heard this word before in places like school, on the news, or maybe from your friends and family, but what even is global warming and what are the effects of it? Good Morning Ms. Hoy and year 8, today I’ll be talking about the harmful effects of global warming. So, back to the question, what is...
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For years plastic has been the common materials being used on a day to day basis. Many objects that are made from plastic can be seen from everyday such as plastic bags, food containers, storage, and a range of other things. Plastic’s existence has only just for over a century but because of the versatility of the materials plastics has...
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In your room, in your home, on the street you live in, and in your workplace, it's everywhere. Since the discovery of plastics in the early twentieth century, and has penetrated in all aspects of life in an unreasonable way, it was able to replace the natural raw materials, which were used widely in successive centuries, which began to drain...
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As Shannon L. Alder once said, “before you call yourself a Christian, Buddhist, Muslim, Hindu, or any other theology, learn to be human first”. But what does it actually mean to be a good human? Certainly not one that normalized disastrous issues like pollution in the name of profit and convenience. The On-the-go, modern lifestyles of people have made disposable...
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The history of plastics according to this paper dates back to the mid-1800 when humans started using natural products with plastic characteristics such as chewing gum. Later it was modified by use of chemicals on naturally occurring substances to produce materials such as rubber. The earliest invention of plastics was made by Alexander Parkes who through laboratory experiments and projects...
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The Last Generation able to Fight Global Crisis Intro We need to change. Today alone [enter statistic here] has happened as a result of the ecological crisis we have caused, do you want these numbers to increase? Do you want to die from old age or global warming? All life known to man exists on this planet, we have overexploited...
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Did you know that humans are dumping more than 8 million tons of plastic into our oceans every year? That's over 21,918 tons of plastic per day thrown into our ocean. Our Earth can’t hold all of the plastic we have thrown away, and we need to ban all single-use plastic. Since over 60 million plastic bottles are thrown away...
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Abstract This case study aims to analyze Dell’s contribution towards addressing the crisis of ocean plastics which is a major pollutant in ocean bodies. Dell which is a privately owned company and a major technological service and products provider, started the Ocean Plastics Initiative after the challenge facing many oceans was brought to the attention of the company. This is...
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Plate tectonics is the driving force for most volcanic activities. At plate boundaries, the crust is either created or destroyed. Divergent plate boundaries, create new crust material from the rising of magma. This new crust slowly pushes the old crust until it gets destroyed by subduction. The sinking of this crust also causes volcanic activities above it. On earth, they...
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Traditionally, oceans did not find their place in economic analysis. They were considered to be a part of the natural resources that could be exploited. The factors of production included land, labor, and capital, with oceans being a fixed factor in production. Oceans were classified as public goods, which means they are non-excludable and non-rival. In recent years, the finite...
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