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Environmental Impact Of Global Warming On The Polar Regions

870 words - 4 pages

Global warming is the gradual warming of the Earth's atmosphere supposedly caused by the burning of fossil fuels and industrial pollutants. The effects of global warming are becoming a main concern in today's society. The environmental impacts of global warming on the Polar Regions are polar bears dying, ice is thinning, polar caps melting, temperature change, sea levels rising and ocean temperatures are getting higher. In figure 1 there is a picture of the South Pole and in Figure 2 there is a picture of the North Pole.One environmental impact is the death of polar bears. Scientific reports state the bears' icy habitat is melting due to global warming. Polar bears now have to swim long ...view middle of the document...

Some say the temperature of the poles is increasing, others say it's cooling. The temperature has been the warmest in 400 years. The other point of view is that it has grown colder over the last 20 years during which time the ice extent has increased.The sea level rising is caused by the ice melting and heating up. The sea will rise approximately 50 centimetres due to the heating and expanding of water. If the oceans rise, villages along the Artic coastline will be drowned. Their cultural identity and survival are threatened if this happens. If Greenland continues to melt at its current rate, some scientists believe that globally the sea level may rise by 6 to 7 metres in the next few centuries.The impact of global warming on melting ice is more likely due to changes in ocean currents. Changes in ocean currents may also be the cause of colder temperatures.Melting glaciers also is a factor in rising sea levels impacting upon low lying areas of the world with erosion of the beach, the flooding of coasts, and salinity problems with freshwater sources. The sea could rise by a metre in the United States by 2100. Experts say if global warming predictions are correct, 33% of the highest glaciers could disappear by 2050 and 50% by 2090. The biggest impact of Antarctica melting...

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