Tuesday, November 2, 2010

Hw#8

1) Recall the show Earth 2100. How does your best judgment about the years up to 2100 compare with the vision provided by the show? For example, if you were to give a younger brother or sister advice on what things will be like, how would that compare to the show?

2) Add more to your project writeup (assuming your project is a report). Focus on, or at least mention,  climate change as it could relate to your topic.

Questions 1 and 2 together should add up to 300 words or more. (If your project is not focused on a report, then you may need to explain how you modified this guideline.)

You may take notes if you wish on how the video relates to your topic as we watch it:


1)I like to think that future as brighter than today. My prediction of 2100 will be more green positive, but also things we do might make future worse than today, May be some of catastrophes happen such as ozone level will be decreased, because heat factors, green house effect, over population, decrease in food supply because of gasoline. Everything is related to each other. But we know that gasoline price is rising right now, it will effect on every single item we use our daily basis life. No government, No country is stepping up doing something which can prevent enough of those disasters. there is a always problem of money, of course, and the difficulty of getting agreement on best course of action, agreements by those who represent divergent interests around the world. They include the rich, the poor, the religious, the captains of industry and their workers, farmers, the city dwellers, the lovers of the great with enlightened and farsighted leadership and with the requisite sacrifices, progress is possible. It must be, because the stakes are so enormous.


If i were to advice my brother or, I would show some of the models I have prepared.

But most of the time people find out early in their life about there are problems which might harm everybody, but we are late most of the time finding solution for it. I strongly suggest my brother to find out solution or alternatives about this facing issues.
But I don't want to scare my brother or sister about telling and focusing on the catastrophes, i want to tell him or her other side of the coin, the bright side. Things will improve, they always do, longer life spans, better health and welfare, prosperity, and general contentment. And even small algae in the sea produces a food for fish, prove thousands of animal a oxygen. It doesn't have to be, but do your best and be wise about our utilities. With that life and destiny will continue show us the way to a better world.

The Basic Idea on Climate change
Earth is heated by sunlight. Some of the incoming energy is reflected by the upper atmosphere, some of it is absorbed by the the air on the way down, but almost half of it reaches the surface of the earth and heats it up. The warm earth in turn radiates heat in the form of infrared waves. This energy in the infrared band is partially absorbed by the atmosphere and re radiated back to earth. It is this exchange of infrared that makes the considerable warmer than it would be were there no atmosphere. it also this heat exchange that constitutes the greenhouse effect. in fact, without an atmosphere to catch and return the infrared waves, the earth would be a very inhospitable place indeed. The amount of greenhouse warming and the average temperature of the earth's surface are determined in part by the composition of the atmosphere the percentage of moisture and of various chemicals. CO2 is so important in this composition that scientists have been able to demonstrate a direct relationship between temperature and level of CO2. In particular, a good deal of work has been performed to analyze conditions during the ice ages that have occurred on our planet periodically. Geological records show that over the past million years, the earth has been quite cold most of the time, except for so call interglacial, warm periods that last about 10,000 years and recur every 100,000 years more or less. Analyses of core samples obtained by drilling very deep holes into the polar ice caps show that interglacial periods were accompanied by relatively high level of CO2 in the air. Hence CO2 and elevated earth temperatures seem to have gone hand in hand for long time. Actually CO2 is not the only gas that absorbs infrared radiation. Other components such as CFCs, methane, nitrous, oxide, and ozone (at low altitudes) are believed to contribute to the greenhouse effect.
Ozone is a relatively rare form of oxygen in that molecule of ozone contains three atoms of oxygen O3, while  the garden variety of oxygen has only two atoms per molecule. That extra atom gives ozone very beautiful properties. At or near ground level, ozone is a very noxious component of air pollution. It causes respiratory difficulties for people and does harm to plant life as well as industrial products ranging all the way from rubber tires to ladies stockings. However things are very different in atmosphere.
Approximately 5-10 miles up, where the air is very, very, thin, sunlight causes some of the oxygen in the atmosphere to break up then recombine to form ozone. This beautiful phenomenon occurs to up an altitude of 30 miles, so that an atmospheric layer about 20 miles thick and rich ozone is generated. This is our ozone layer, and the portion of our atmosphere in which it is located is known as the stratosphere. Stratosphere ozone absorbs a large portion of the ultraviolet rays, which are part of the incoming sunlight, thereby effectively protecting the earth from this very dangerous form of radiation.




All greenhouse gases come from human activities?  nature processes has green gases, but recent years the increase in its concentrations, many believed because of use of fossil fuels, such as coal, oil, and worldwide decimation of forests by logging and the clearing of tropical rain forests for agricultural purposes. But  we use the fossil to make energy, to stay warm, to make our clothes, we all need food because of our super increasing populations...

I think solution can be ...


>>>>TO BE CONTINUE<<<<

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