society. There are many energy sources that can be readily converted into electricity. In Australia‚ most power plants burn a fuel‚ such as coal‚ or use the energy of falling water to generate electricity on a large scale. Electricity is also relatively easy to distribute. Electricity authorities use high-voltage transmission lines and transformers to distribute electricity to homes and industries around each state. Voltages can be as high as 5 × 105 volts from power stations but by the time
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TOPIC 6: GLOBAL WARMING GHG gases: Carbon dioxide Water vapor Methane Function: they allow short wavelengths of radiation to pass through the Earth‚ but they trap the longer wavelengths that are radiated from the earth. (Greenhouse effect) Greenhouse effect The GHGs allow short wavelengths of radiation to pass thought the Earth’s surface. It regulates the Earth’s temperature keeping conditions warmer than without the effect and more hospitable to life. Examples of greenhouse gases
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The earth has endured periodical cycles of warming and cooling‚ but how much of the modern climate change is in fact natural? In the last 650‚000 years‚ the earth has gone through several major changes in temperature‚ caused by an array of natural effects. Many things contribute to the change in temperature‚ including the earth’s orbital change‚ the slight lean of the earth’s axis‚ and the natural change in atmospheric composition. Although‚ since the industrial revolution in the late 1800’s‚ the
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Climate Change Regulations SCI/362 August 09‚ 2012 Climate Change Regulations Anthropogenic climate change is an establishment phenomenon. Within the scientific community‚ the question is no longer whether climate change will occur‚ but at what rate‚ with what effects‚ and what‚ if anything‚ we can do about it. The biggest culprit in climate change is an increase in atmospheric carbon dioxide‚ which is generated primarily through burning fossils. Earth’s average temperature is based on
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famously quoted‚ “The art of prophecy is very difficult- especially with respect to the future”. Simon Caney describes how the earth’s climate is enduring profound changes which to a large extent are caused by human activity‚ resulting in undesirable effects on people’s standard of living especially the weak and vulnerable. (Caney‚ 2010) Scientists claim that climate change heralds unpredictable weather events like raised sea levels‚ that causes floods and in some cases greater risks of ‘storm-surges’
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Consensus on Climate Change” written by Naomi Oreskes is intended to let the readers understand that there is a consensus that anthropogenic global climate change is occurring. In her essay‚ Oreskes states that although some groups claim there is not substantial evidence that Earth’s climate is being affected by human activities‚ overall‚ the scientific community is in agreement that evidence is quite clear. “IPCC states unequivocally that the consensus of scientific opinion is that Earth’s climate is being
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Institute of Technology Department of Physics VILLAFLOR‚ KIM MICHAELA B. EMG/3 PHY11-2L/B4 2009100103 GROUP NO.5 504 DATE OF PERFORMANCE: MAY 3‚2013 DATE OF SUBMISSION: MAY 10‚2013 INSTRUCTOR Analysis: The work done by the fan cart is not constant. Because the work is directly proportional to the displacement given a constant force while power is indirectly proportional to work. Therefore we can conclude that power is also directly proportional to the
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regards to climate change‚ it is often believed that the “hockey stick” graph is the only indication of detriment humans have caused to the world. So if someone can disprove the data from the graph‚ it is believed that all of climate change can be invalidated. However‚ Michael Mann refutes this belief wholeheartedly; the graph is based on data he and his colleagues comprised. To him this mistake in the public’s opinion was created on purpose to easily disregard the idea of climate change being true
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Fact Sheet: Climate Change in Australia Over Millions of years The Ice Age – The Cryogenian Period (850-630 million years ago) Even though there wasn’t ice everywhere when the ice age occurred‚ Australia and the rest of the continent were majorly affected by ice glaciers (known as bulldozers). Due to the environment being very cold and the outskirts of the glaciers turning into artic deserts‚ glaciers preserved the fossils of various plants and animals. Based on this fossil evidence‚ it is proven
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Climate Change and the Ross River Virus Climate change may be a politically contentious issue‚ but the scientific community has reached a consensus: it is real and the effects could be disastrous (Hughes‚ 2003). Within the next century‚ there will be changes in rainfall patterns‚ rising sea-levels and significant temperature increases‚ as well as the impact these conditions will have on flora‚ fauna and disease transmission (Hughes‚ 2003). Of particular concern to Australia is how these changes
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