Thursday, May 28, 2009

Global warming

The global warming is an environmental problem which defines as the increase in the world’s temperatures, which is believed to be caused in part by the greenhouse effect and reduction of the ozone layer, water sea level and air pollution. I will explain how global warming effects our environments and life.


The environment scientists believed that global warming has many causes and effects on all living creatures. They think that there are many reasons which affect on the global, but the most effective are the industries.However, the effect of this problem has been raised to become noticeable. For example, the number of Categories 4 and 5 hurricanes have almost doubled in the last 30 years. Furthermore, Malaria has spread to higher altitudes in places like the Colombian Andes, 7,000 feet above sea level which is very strange. In addition, at least 279 species of plants and animals are already responding to global warming, moving closer to the poles. This is not all, because it’s predictable to have many other problems in the future like. Therefore, Deaths from global warming will double in just 25 years. Another problem is that The Arctic Ocean also could melt in the next five decades which result in submerging many lands for example, low Europe countries, Bangladish and part of India. As sea ice cover decreases there will be more human activities such as commercial shipping, oil, gas and mining exploration and development, and military activities in previously untouched areas of the Arctic. (Schafer)




They are many solutions for global warming problem. The first solution with diverting the usage of natural sours of energy like solar cell or water fall. Another solution is applying a streaks regulation for industries to reduce the emissions of green house gases.
Reducing greenhouse gases, they argued, also meant cleaner air, and targeting fossil fuel emissions in particular had dramatic health benefits (Sheldon)


In conclusion, I believe that the global warming is very serious issue Not only the humans lives, but on the living creatures too. I believe as it predictable to have more global warming affects in the future. We can start to solve this problem seriously right now before the worse happen.





Bibliography:
Schafer, Kevin. "Whales In Hot Water: Global Warming's Effect On World's Largest Creatures." Science Daily: News & Articles in Science, Health, Environment & Technology. 28 May 2009 http://www.sciencedaily.com/releases/2007/05/070522125023.htm


Sheldon, Tony. "Reducing greenhouse gases will have good short term effect -- Sheldon 321 (7273): 1367 -- BMJ." Bmj.com:. 28 May 2009 http://www.bmj.com/cgi/content/extract/321/7273/1367/a


"Hurricane Mitch Pounds Central America, October, 1998-November, 1998." Historic World Events. Detroit: Gale, 2004. Student Resource Center - Gold. Gale. Higher Colleges of Technology. 1 June 2009 .

Sunday, May 10, 2009

Cool Cities




Most cities in the world have heat and CO2 emissions due to modern life style for example consuming a lot of electricity and transportation. Therefore they made new project which called Cool Cities. Cool Cities have basics needs for life like water, electricity and transportations but friendly for environment. However there are two main problems for this type of cities now I’m going to describe my research for problems.



First of all, the world population growth is high and they were survey and it shows the increasing will be around 9.1 billion. These cool cities can’t have too many people. For example Masder City can take around 47thosund people to live there. Therefore too many people will lift to live in global warming.




The second problem it cost too much money to build, Masder City will cost around $22billion dollar in, addition many country around a world are poor and not everyone can live in Cool Cites. Another problem it will consume much energy to build.
The third problem is the people life style it difficult to change because of transportations its means no car there or taxi should all people who want to live there use public transports like electric trains.




To conclude, Cool Cities have many negative points more than positive. It is not practical to say most people can live in Cool Cities.

Bibliography:
"Masdar City: 100% Carbon-Neutral Environment ." Marquette Turner Luxury Homes. 10 May 2009 .

"World population to reach 9.1 billion in 2050, UN projects." Welcome to the United Nations: It's Your World. 10 May 2009 .