Monday, April 30, 2007

Temperature rise

On this paragraph I am going to write about one of the most important affect of the global warming. Temperature rise is one of the most important affect because of the global warming. The temperature of the Antarctics southren ocean rose by 0.17 °C (0.31 °F) between the 1950s and the 1980s, nearly twice the rate for the world's oceans as a whole. As well as effects on ecosystems (e.g. by melting sea ice, affecting algae that grow on its underside), warming could reduce the ocean's ability to absorb CO2.
More important for the USA may be the temperature rise in the gulf of Mexico. As hurricanes cross the warm loop current coming up from South America, they can gain great strength in under a day (as did Hurricane Katrina and Hurricane Rita in 2005), with water above 85 °F seemingly promoting Category 5 storms. Hurricane season ends in November as the waters cool. This broblom maybe make disaster on the earth and maybe destroys the life of the human and animals.
Time is running , people should understand the risk of global warming. it is the time to take a series design to stop this affect and to find out solutions to fix this problem .

Global WarMing EffectS

There are many affects of global warming risks our life and our environment. One of the most important affect is sea level rise increasing average global temperature, the water in the oceans expands in volume and additional water enters them which had previously been locked up on land in glaciers. Another important effect is Temperature rise in some countries and also temperature decreased in another. For example New York city was very cold in Jan but now it become very hot , on another hand California city become cold. In additional ecosystems is one of the effects, That Many of the species at risk are arctic and Antarctic fauna such as polar bears , emperor penguins, many salt wetland flora and fauna species, and any species that inhabit the low land areas near the sea. Actually there many affects following such as Ecological productivity, Glacier Retreat, Methane release from hydrates Economic and Effects on agriculture.

Sunday, April 29, 2007

Green House

There are many reasons leads us to the global warming. One of the most important reasons is Green Houses. The greenhouse effect was discovered by Joseph Fourier in 1824 and was first investigated quantitatively by Svante Arrhenius in 1896. It is the process by which absorption and emission of infrared radiation by atmospheric gases warms a planet's atmosphere and surface.Greenhouse gases create a natural greenhouse effect, without which, mean temperatures on Earth would be an estimated 30 °C (54 °F) lower, so that Earth would be uninhabitable. Thus scientists do not "believe in" or "oppose" the greenhouse effect as such; rather, the debate concerns the net effect of the addition of greenhouse gases, while allowing for associated positive and negative feedback mechanisms

Causes Of Global Warming

As well as every body know nothing done without reasons. There are many couses which created Global warming i am going to talk about its in this pag.
The climate system varies through natural, internal processes and in response to variations in external forcing factors including
solar activity, volcanic emissions, variations in the earth's orbit (orbital forcing) and greenhouse gases. The detailed causes of the recent warming remain an active field of research, but the scientific consensus identifies increased levels of greenhouse gases due to human activity as the main influence. This attribution is clearest for the most recent 50 years, for which the most detailed data are available. Contrasting with the scientific consensus, other hypotheses have been proposed to explain some of the observed increase in global temperatures, including: the warming is within the range of natural variation; the warming is a consequence of coming out of a prior cool period, namely the Little Ice Age; or the warming is primarily a result of variances in solar radiation.
None of the effects of forcing are instantaneous. Due to the
thermal inertia of the Earth's oceans and slow responses of other indirect effects, the Earth's current climate is not in equilibrium with the forcing imposed. Climate commitment studies indicate that, even if greenhouse gases were stabilized at present day levels, a further warming of about 0.5 °C (0.9 °F) would still occur.

Monday, April 16, 2007

Global warming

One of the most important problem facing the world is global warming and to be honest its the biggest risk problem in this century. Although scientists were warning the people and government about this problem since long time , No one responded with the warning.
The mening of Global warming is the gradual increase in global temperatures caused by the emission of gases that trap the sun's heat in the Earth's atmosphere. Gases that contribute to global warming include carbon dioxide, methane, nitrous oxides, chlorofluorocarbons (CFCs), and halocarbons (the replacements for CFCs). The carbon dioxide emissions are primarily caused by the use of fossil fuels for energy.
An increase in global temperatures can in turn cause other
changes, including a flooding , an increase in the frequency and intensity of extreme weather events, reduction in agricultural yields due to changes in the amount and pattern of precipitation, increases in the ranges of disease vectors, reduced summer stream flows, further melting of glaciers, and species extinctions.

Sunday, April 1, 2007


Hi

My name is Sultan Al Mansoori. Iam 25 years from Abu Dhabi, United Arab Emirates.
I have 6 brothers and i am the forth amongst them. I was born in Abu Dhabi and iam live there.

Iam a HD student at HCT and enshalla I am going to study Networking because I like this subject and I really want to learn more about it. I chose HCT becouse i know that i will learn many things from HCT and also to improve my English. I graduted in 2003 and i got a Diploma degree in ITC.Actully i have many hobbies , one of the most important one is football, following it become cars racing. another important hobby is traveling , i love travel. althought traveling is very expensive , Itravel every year becouse travel make me relax and i can know and meet many people from all over the world and dicover their culture.