2009+World+History+Final+Project+D+Jee+Min


= =  How does extinction of polar bears and mislead migratory birds reflect global warming?

What is global warming?
 Global warming is the overall rise in temperature all over the world. Many scientists think that global warming is caused by human activities, by increasing the Earth’s natural greenhouse effect. Global warming has caused the temperature around the world to rise 0.3 Celsius to 0.8 Celsius for the last hundred years.//(Student Research Center)// Scientists estimates that the temperature will rise 4 Celsius for the next hundred years.//(Kump pg.9)// This may seem like a small difference, but the consequences of global warming can be severe. We have to stop it. NOW!

media type="youtube" key="oJAbATJCugs" height="344" width="425" This video does an awesome job telling you about global warming and telling the main cause briefly in just three minutes!

[|THis shows the heat on earth.]

Look at how much temperature has risen.


The temperature is rising too quickly that now, scientists are sure it is humans that cause global warming. It's happening all too fast to be seen as a natural process. Green house effect is what leads to global warming, however, the main cause of green house effect is us.// Of course it'll not be all because of humans, because there could be other factors as well, such as a volcanic eruption, or a natural forest fire. However, it cannot be denied that humans are the main cause. ( pringles pg.6 ////)// Burning fossil fuels is one the main ways we get our energy source. However, whenever we burn fossil fuels such as coal, it releases carbon dioxide which contributes to the green house effect. To be more specific on how we contribute in causing a green house effect is when you are riding a car, you are releasing carbon, when you buys a suburban home, that's also causing global warming because probably a lot of trees were cut down to make the space. Also, simple things like putting the light on when you're not in the room is also wasting energy which lead up to green house effect that automatically creates global warming. //(// //What are the Major Causes of Global Warming?)//

Conclusion
=== My question was "how does extinction of polar bears and mislead migratory birds reflect global warming?" The polar bear population is dramatically going down continuously. This is because of the climate change due to global warming. The climate change is even more serious in the Arctic than it is where we are. The rising temperature makes it hard for the bears to survive. Also, due to the warmer climate, the ice has melted, which took away the bear's habitat and a good hunting season. It also trapped them in the middle of the ocean since polar bears are evolved to only swim short distance. Global warming also bring in unstable weather like hurricanes and rain storms which are crucial to the polar bears as well. It is an instinct for the birds to find their migrating location that is just right for them. However, due to global warming, migratory birds have been moving continuously north. It may be different for each bird, depending on the species, but they've been moving 80~ 400 miles more north than they're usual location. Most of the birds showing this pattern, and the big difference in the distance cannot be reasoned with a natural process. It is sure that its because of global warming, the global warming that we caused. This is how global warming has affected the wildlife such as polar bears and migratory birds. Decreasing the population of the polar bears and misleading the migratory birds to somewhere different. We have to work together to stop it now. We will have to try prevent from getting any worse. Save energy! Try to use public transportation, or walking and biking would be even better. The released carbon dioxide is one of the major factor that causes green house effect. Let's try to reduce the carbon dioxide emitted from the power plants as well. Turn off lights and water when you're not using them. Save the world! ===

Bibliography

WEBSITES
==="Student Research Center." __EBSCOhost__. 7 May 2009 . === === Farndon, John. "Student Research Center." __EBSCOhost__. 7 May 2009 . ===

"Boing Boing Gadgets: Science Archives." Boing Boing Gadgets. 1 June 2009 .
"Home." Academic Info. 1 June 2009 .

"Polar Bears." __Liza's Reef -Coral Reef Art__. 1 June 2009 .

VIDEOS "YouTube - Global Warming 101." __YouTube - Broadcast Yourself.__. 1 June 2009 <http://www.youtube.com/watch?v=oJAbATJCugs>.