Wednesday, May 27, 2009

The greenhouses gases effect

Global warming is a huge problem in our world these days. There are several causes of global warming that harms our beautiful earth. In this essay I’m going to write down one of the main causes of global warming giving some problems and solution about it.

Global warming is a change in the earth’s climate. The main cause is the greenhouse effect and this causes the temperature to rise. The progress is by trapping the sun’s heat and light in the earth atmosphere. This is like when heat is trapped in a car. On a very hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows, but can’t get back out. This what greenhouse effect does to the earth. The gases which cause this effect are carbon dioxide, methane and nitrous oxide. However the main gas that causes this problem is carbon dioxide it’s produced by factories, car, and cutting down trees. With the increase of population more food is needed were more factories are built. Also another reason to produce CO2 being used in vehicles. fossil fuels are used to produce electricity. Burning these fossil fuels releases billions of tons of carbon dioxide into the air every year.” Ed. John T. Tanacredi and John Loret” and more houses are built by cutting the only source of absorbing CO2 which is trees. If people increase in producing gases it will give a huge problem for the earth, such as more severe floods and droughts, increasing prevalence of insects, sea levels rising, and Earth's precipitation may be redistributed.“MSU Physics and Astronomy Department”. Also it will causes negative effect on society such us diseases and decreasing economic development.

On the other hand there are solutions for global warming .We can use the renewable energy that has zero carbon emotion like solar, wend, and others. Also the government should stop cutting trees and fine anyone who cuts down trees. Reduce using transportation and start walking so that we don’t burn a lot of CO2. Also reduce building factories because of burring gases and stop using coal as source of heat. We should also use technology which doesn’t causes greenhouse effect and try to stop anything that causes this problem We also should start thinking of ways that we can stop the global warming so that our children can have a happy life.

In conclusion, we should stop destroying our beautiful earth and think about making it place were we can live with out harmful causes. We can control the global warming only if we control our lives. I believe what Al Gore said in his presentation because a feel the rises in temperature. We should think about our children’s future, we want them to live in a clean and unharmed earth.

Your bibliography:

"8/31/94 - How does carbon dioxide cause global warming?" MSU Physics and Astronomy Department. 27 May 2009 .

greenhouse Effect." Experiment Central. Ed. John T. Tanacredi and John Loret. Vol. 2. Detroit: UXL,2000. Student Resource Center - Gold. Gale. Higher Colleges of Technology. 27 May. 2009 &contentSet=GSRC&type=retrieve&tabID=T001&prodId=SRC1&docId=EJ2121000020&source=gale&srcprod=SRCG&userGroupName=971hctnet&version=1.0>.

"Greenhouse Gases." University of Michigan. 27 May 2009 .

Sunday, May 10, 2009

COOL CITIES ARE PRACTICAL? YES OR NO



Masdar is the largest project in Abu Dhabi it’s a city where it’s free of carbon, zero-west and car free. So the footprint number of Abu Dhabi could reduce. However, this type of project isn’t practical. I’m going to write down the 2 reason why its not practical

The first reason is that masdar is build only for a population of 47500 people. There around 4.104,695 people live in the UAE , so this want fit all of them. Therefore they should increase the capacity of the population but its difficult because there are no more good areas to build and it is impossible to destroy a city and build another one.

The second reason is that the cost of building this kind of cool cites. Masdar costs about $22 billion. This kind of many can be presented most of all countries but not the poor ones. Also that one cool city is not enough for on country they should build more were they will pay double the price. Were this many can build more than one project to reduce the CO2 problem in the world rather than cool cites.

It’s great to have a city like Masdar were air is clean of carbon, but it costs a lot and the capacity isn’t enough for everyone. Whereas building of a cool city is enough to solve the problem of carbon in the world


Bibliography:

1) "Masdar, 2014: The Greenest City in the World Britannica Blog." Encyclopedia - Britannica Online Encyclopedia. 10 May 2009 http://www.britannica.com/blogs/2008/11/masdar-2014-greenest-city-in-the-world/.
2) Welcome to MASDAR. 10 May 2009 .