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Article posted January 17, 2012 at 11:43 PM GMT0 •
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For this article I am assuming that global warming exists. After much research I decided that my opinions leaned more towards the idea of global warming to be a natural warming-cycle. With that assumption I will discuss why I think global warming may not be man-made.
I have read some articles that mention that the temperature average for the last 100 years has gone up by about 1 degree. And many scientists believe that the average temperature could go up even more within the next century. Global warming is also of concern because it makes the icebergs of the poles to melt faster and that makes the world’s ocean levels to become higher. That can flood many lands that are at lower altitude. Those who believe that global warming is man-made argue that humans by building too many cars, factories and industrial businesses are polluting the air with too much Carbon Dioxide-CO2, and they believe that this pollution in the air causes global warming.
However those who believe global warming is not man-made and it’s just a cycle in Earth’s climate, they say that the amount of CO2 in the air is so minor that it cannot contribute to a matter so big as global warming. In fact they say that CO2 is good for plant life on Earth. Based on a source, in 2008, only 39 molecules out of every 100,000 molecules of air was CO2. Earth and its atmosphere are very large and I do not see how these small polluting percentages would be able to have an effect towards global warming. Therefore, according to these scientists Global Warming is most probably a natural occurring cycle.
Another fact to support that global warming may be a natural cycle is that the average temperature between the years 1850 and 1940 were infact higher than the average temperature from 1940 to present time. Even though back then in the late 1800s and early 1900s millions of cars and other man-made “global warming causes” were not as significant as they are today.
After learning about both arguments I believe that it seems more reasonable for global warming to be a natural climate cycle of the Earth rather than being man-made.
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Article posted January 17, 2012 at 11:43 PM GMT0 •
comment • Reads 361
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Article posted December 6, 2011 at 04:06 AM GMT0 •
comment • Reads 655
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A black hole is a region of space from which nothing, not even light, can escape. In happens when one or more stars instead of exploding, implode. They collapse into themselves and become so dense, and so heavy that their combined gravity pulls everything around it to itself. Even light gets pulled in that’s why it becomes like a black hole. Black holes are mysterious; we can’t really tell what’s inside of them. Our super telescopes detect them to be billions of light years away. That’s a very long distance when you consider a light year to be the distance that light can travel in a year’s time. The study of black holes helps scientists to learn more about how early galaxies were created. It teaches them the behavior of gravity on the objects around it and how a black hole could be making a difference in the way new galaxies and stars are shaped. Black holes are seen only because they are surrounded by stars and planets that are far enough from it that do not get pulled in but stay around therefore when looked at from far with a telescope, we can detect galaxies of light with a surprise black spot (hole) in the middle of it. So, the next time you come close to a black hole, be very careful because if you get closer than you should, you will get pulled and will never be seen again :-)
want to learn more? http://amazing-space.stsci.edu/resources/explorations/blackholes/teacher/sciencebackground.html
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Article posted December 6, 2011 at 04:06 AM GMT0 •
comment • Reads 655
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7 facts About Me!
Article posted October 24, 2011 at 10:44 PM GMT0 •
comment (1) • Reads 764
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7 facts:
1) I have an obsession with chubby babies! I think they are absolutely adorable
2) I love acting, a lot.
3) I have 18 year old twin brothers. They just left for collage!
4) I am Persian, Israeli, Italian and Russian.
5) I can't do my homework without music playing in the backround.
6) When I laugh really hard, I lose feeling in my right hand and can't write anything for about 25 minutes. Weird, huh?
7) I love spending time with my friends and family.
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Article posted October 24, 2011 at 10:44 PM GMT0 •
comment (1) • Reads 764
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About the Blogger
Hey there! I'm Nikki and i am so excited to learn about Earth science this year! I'm in 8th grade and my favorite subjects are Math and Science. I love to learn new things and to have fun!
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