Antarctica can be seen as the world’s largest laboratory. Science is one of the most important reasons as to why we venture into this barren desert‚ and we have made and continue to make important scientific discoveries in the Antarctic. We have made discoveries like: How the atmosphere and the oceans ‘work’ and how they are linked‚ how much Antarctica has moved etc. Old explorers like made the first journeys across the vast continent and became ingrained into history books for doing so. Captain
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harmful to living organisms and is only partially absorbed by the ozone layer of lower stratosphere(6). And due to ozone depletion in the recent decades‚ more UVB radiation reaches the surface of the Earth and hence able to penetrate through sea at a greater depth‚ causing detrimental damages to marine life(1‚8). UVB radiation forms 1.5% of the solar irradiance energy(6). It is undetectable by human eyes and is found
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Chemistry Ozone Depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth’s stratosphere (the ozone layer)‚ and a much larger springtime decrease in stratospheric ozone over Earth’s polar regions. The latter phenomenon is referred to as theozone hole. In addition to these well-known stratospheric phenomena‚ there are also springtime polartropospheric ozone depletion events. The
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infrastructural development progressing at a rapid rate‚ some harmful chemicals that are produced from science and technological equipment are disposed in the environment. Due to the subsequent increase in the amount of these chemicals in the atmosphere‚ the Ozone layer that prevents harmful particles from entering into the earth atmosphere gets depleted causing those harmful particles to enter into the earth atmosphere. Due to this‚ the earth’s environment is disturbed‚ which‚ in time‚ results in very high temperature
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levels of each of these in the atmosphere are measured using the parts per million (ppm) index. Criteria pollutants These air pollutants are the most closely regulated around the world. They include: carbon monoxide; lead; nitrogen oxide; particles; ozone; and sulphur dioxide. In Australia‚ the two criteria pollutants of greatest concern are
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predicted to fall to 39 million barrels a day by 2030 due to diminishing resources. (Seager‚ 2007) In 50 years and as these resources doubled in consumption‚ carbon dioxide levels increased over 20%‚ which is very harmful to our environment and the ozone.
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Not many people know about Green Chemistry. Yet if we had know about Green Chemistry back around 1951‚ when the world began to develop it’s industries - such as farming‚ after World War II we wouldn’t now be battling things such as damage to the ozone layer‚ diseases and harm to the environment‚ caused by chemical pesticides and dumping of chemicals into our oceans and other waterways. Not enough people realise the importance of chemicals and green chemistry in everyday life. Most people think of
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In the mid-twentieth century the earth’s average temperature is increasing due to the fact that global warming is taking place. Global surface temperature has increased about a degree in the past century. The progressive gradual rise of the earth’s surface temperature thought to be caused by the greenhouse effect is responsible for changes in global climate patterns. An increase in the earth’s atmospheric and oceanic temperatures is widely predicted to occur due to an increase in the greenhouse
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GLOBAL WARMING What Is Global Warming? Global warming is the warming of the earth through carbon dioxide (CO2) being pumped into the atmosphere from tailpipes and smokestacks. Then the gases trap heat like the glass in a greenhouse. This is where the term the “greenhouse effect” came from. What’s Happening Scientists say that the barrier insulating the continental ice caps is melting. “The impacts of warming temperatures in Antarctica
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Earth are mostly caused by factories and cars. A gas called CO2 that is emitted from factories and cars is causing the ozone layer to disappear. The ozone layer protects us from the dangerous rays of the Sun‚ but once the ozone layer is gone‚ the rate of getting skin cancer will increase. Today the chances of getting skin cancer which is caused by the disappearing of the ozone layer is %65-%90. We would be able to lower the rate of chances of skin cancer if we change our ways on using factories and
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