Global warming


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Global warming

  1. 1. GLOBAL WARMING<br />By Sana Samad<br />What would happen if you woke up one day and suddenly found yourself in chaotic world where there is catastrophe everywhere? Global warming is a worldwide phenomenon that is affecting our earth in a very dramatic way. However, there are scientists who disagree with this fact and say that it’s not global warming affecting our earth, it’s the opposite, it’s global cooling. How strange is that? This has created a dilemma as to what people should believe. Conversely, global warming has solid evidence to support it. Some of the very obvious reasons are the increase of the earth’s temperature due to human activity, the retreating of the glaciers and lastly the fact that the past decade has been recorded as the hottest one so far. So, this shows that global cooling is not legitimate. <br />Studies show that our earth is heating up because of the greenhouse gases that get trapped in our atmosphere. The average global surface temperature has increased by 1.4 degrees Fahrenheit. This is because of our atmosphere is reflecting back the incoming radiation of the sun. Earth partly heats up because of the burning of fossil fuels. Currently, about 80% of our energy comes from fossil fuels. This means that since we are using so much fossil fuels, we are burning them a lot, causing them to emit carbon dioxide in the environment. This ultimately results in the creation of the greenhouse gases. Statistics show that uncontrolled burning of fossil fuels will result in the melting of polar ice-caps, rising of sea levels and inundating coastal communities. According to the Institute of Oceanography, carbon emissions as a total have been increasing since 1960. It has increased from 320ppm (parts per million) in 1960 to 400ppm in 2010. These significant numbers evidently justify that global warming is serious, because our earth heats up with gases, its causing problem at the poles which results in melting of the ice in an disproportionate manner. <br />Evidence shows a global decline of snow and ice. In particular, starting from 1980 and the past decade the ice has started showing signs of melting. Snow is retreating in the early spring. Ice in the Arctic is shrinks all seasons especially during the summer season. And because of this melting, it has caused a rise in the sea level in various regions around the globe causing floods. Over the past years, Arctic sea-ice extent has decreased about 5%. This may seem a small number but imagine the same happening every year. And statistics also show that since 1966 the ice in the Northern Hemisphere has decreased by 2%. The rise in the earth’s surface temperature has caused the melting of the snow around the globe. This effect has caused huge problems around the earth because as the earth heats up, the glaciers start to melt and flow into the sea, increasing the sea level and causing floods in low-lying land areas. In other words, how can global cooling be taken seriously if there are so devastating results of global warming? <br /> <br />Global warming has gained more attention worldwide than global cooling because it’s just not the evidence, it’s the fact that people are observing the climate around themselves. An analysis of the global temperatures by statisticians shows that the earth is still warming and not cooling. The statisticians researched the temperatures of the past years and found no trend of falling temperatures. This means that global cooling is nowhere close to being serious, because no effects have come into notice. Secondly, the past 10 years have been recorded, as the hottest decade of the planet, so linking this to global cooling would be absurd. The reason why people might have thoughts or confusions about global cooling is because of the earth cooling down in different regions, but this is not because sunspot activity, on the contrary it is actually because of the La Nina effect. Which is when the earth’s surface temperature cools down. And because of the La Nina, it has caused some fluctuations in the rising temperatures that have caused people to re-think about what they believe. But even though La Nina had occurred, the past years were still extremely warm. Over the past years, sea levels have been rising at an average of 1 -2 millimeters and this is because when the ice melts they flow into the sea causing them to overflow. Glaciers in South America’s Andes are melting so fast that if the current rate continues, they could disappear entirely by 2020. Clearly, this proves that global warming is serious and has reliable evidence to support it.<br />In conclusion, I would say that before believing in something, you need to weigh the evidence, and see if it is reliable. It’s global warming effecting our earth warming because people won’t make this a big issue for no reason, it has got to have some strong evidence to back-it up, which it does have. On the other hand, global cooling has facts that are merely there for causing confusion and dilemmas in people’s minds as a lot of money is involved in these issues. Ice and snow around the globe is melting. It’s getting warmer and warmer as everyday passes. There are catastrophic disasters everywhere because of the change of seasons and increase in the water-level. So how can we put these facts aside and believe in something that is completely superficial? Global warming is a very serious issue, and if not acted upon now, is going to drastically destroy our earth for our future generations. And by the time we even realize the chaos in the world, it will be too late to do anything. <br />BIBLIOGRAPHY:<br />Unknown, Author. Is the amount of snow and ice on the earth decreasing. Accessed December 20th 2010<br />Nelson, Dennis. Global Warming and Glaciers. Accessed December 20th 2010<br />Vardiman, Larry. Evidence for global warming. Accessed December 20th 2010<br />Unknown, Author. Global Warming. Accessed December 20th 2010<br />Esch, Mary. Summer 2010 Hottest on record, new data suggest. Accessed December 20th 2010<br />Unknown, Author. Global Warming. Accessed December 20th 2010<br />Mathias, Kevin. Global Warming and Melting Glaciers. Accessed December 20th 2010<br />Borenstein, Seth. Statisticians reject global cooling. Accessed December 20th 2010<br />