UNIB10007 Introduction to Climate Change Climate change: Is there a problem? Professor David Karoly School of Earth Sciences‚ University of Melbourne Some views from leaders • Ban Ki Moon “Climate change is the greatest threat facing humanity. It threatens to undo 50 years of our development work and it will impact the poor in the greatest sense.” • Barack Obama “We will respond to the threat of climate change‚ knowing that the failure to do so would betray our children and future
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An Inconvenient Truth by Al Gore‚ is a documentary that tells us about Global Warming. He tells us‚ Global Warming involves solar radiation in the form of light waves passing through the atmosphere. Most of this radiation is absorbed by the Earth and warms it. Then some of the energy is radiated back into space‚ by the Earth‚ in the form of infrared waves. However during this process‚ some of the outgoing infrared radiation is trapped by the Earth’s atmosphere and warms it; which in return keeps
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In the ted talk video‚ Al gore starts by mentioning that the arctic ice cap has reduced by 40 percent from the year 1980 to 2007. Al gore emphasized the ice cap’s vitality to our ecosystem. The ice cap usually increases during cold seasons and decrease during low hot seasons. Digital image show that the permanent ice has shrunken by more than half over the past 25 years. A multitude of frozen carbon lies around the arctic ice cap‚ then it decreases the carbon rise and turn into methane. All of this
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Social Studies – CAT What al gore’s theory was saying? There is such an assumption that people have on global warming that just isn’t right. They believe that the earth is so big that we can’t possibly have any lasting harmful impact on it. Maybe it was true at one time‚ however not anymore. One of the reasons it’s not true is that the most vulnerable part of the earth ecological system is the atmosphere. Vulnerable because it is just so thin‚ if you had a big globe with a varnish on it the
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of environmental changes. These changes on the geography of the Earth within such a small time frame are unheard of‚ and may be irreversible. Climate change has a wide range of adverse effects on the natural world and manmade systems. The main concerns are the risks posed on the Earths geophysical and ecological processes. Many causes influence climate change with the main cause being increased atmospheric greenhouse gases. Other major causes include deforestation‚ land-use changes‚ and chlorofluorcarbons
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of the world on the challenge of survival and existence and on its battle on climate change. In particular‚ this will provide the future readers some recent information on the earth’s condition as it is continuously affected by climate change. Included in this paper are the overviews from the different resources on what is really climate change; its causes‚ effects‚ and preventive ways to reduce the effect of earthly change. ACKNOWLEDGMENT The researchers would like
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Global climate change has positive and negative effects on marine and terrestrial ecosystems. The cause of global climate change is said to be because carbon dioxide is being emitted through the large scale burning of oil‚ coal and gas‚ with an additional contribution coming from clearing of tropical forests and woodlands which results in wildlife life destruction. The carbon dioxide traps heat from the sun in the earth’s atmosphere and prevents it from being sent back out into space. The heat that
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Climate change Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average (e.g.‚ more or fewer extreme weather events). Climate change may be limited to a specific region or may occur across the whole Earth‚ such as global warming. Terminology The most general definition of climate change is a change
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Topic: Climate Change Question: What are the factors that affect climate change? Causes of climate change The earth’s climate is dynamic and always changing through a natural cycle. What the world is more worried about is that the changes that are occurring today have been speeded up because of man’s activities. These changes are being studied by scientists all over the world who are finding evidence from tree rings‚ pollen samples‚ ice cores‚ and sea sediments. The causes of climate change can be
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Why climate change is good for the world Don’t panic! The scientific consensus is that warmer temperatures do more good than harm Climate change has done more good than harm so far and is likely to continue doing so for most of this century. This is not some barmy‚ right-wing fantasy; it is the consensus of expert opinion. Yet almost nobody seems to know this. Good news is no news‚ which is why the mainstream media largely ignores all studies showing net benefits of climate change. And academics
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