When I read about this topic, I fell scared. You also can read this article to know what happen to our earth :)
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| Pity that polar bear :( I feel like wanna cry |
What Is Global Warming ?
Global warming or global warming associated with rising world temperatures. Earth's temperature has risen two degrees and the rates vary by continent and region specific. Study finds Arctic warms faster than the rest. Climate change usually occurs within 10,000 years but is now changed to climate change over the last 100 years, a distance of only 2 generations. Earth's temperature increased over 90 years. The study found the French extreme hot climate, warmer climates in the Siberian region and dilution "permafrost" (permanently frozen soil layer in the coldest region), especially in the Arctic region. Scientists predict the overall sea ice in the Arctic will melt in summer 2099. Polar ice caps of Greenland and West Antarctica are melting. Sea level rise of about 7 meters dramatically.
Cause of Global Warming
Scientifically, the gas content is too much carbon dioxide in the atmosphere will Affect the Earth's temperature to a level that's is not stable or heat. This is Because carbon dioxide would trap infrared radiation (IR) at wavelengths of ~ 4200 micrometers and this will result in stretching of C = O
Stretching is going to happen in the short term. Carbon dioxide gas molecules Then release the energy absorbed at first to be in stable condition . This process will Cause the molecules of carbon dioxide to trap and release the reflected infrared radiation from the Earth's surface over time. This will delay the release of heat into space and Eventually trap heat in the earth's atmosphere and space Irma the greenhouse effect. Eventually the greenhouse effect be the Cause of global warming.
Greenhouse Effect
Agricultural activities carried out by humans has created a greenhouse effect . Greenhouse is a place built by humans using transparent glass to facilitate penetration of sunlight and it is supplied to the crop. Seedlings will be planted in the greenhouse gas as carbon dioxide concentration in the air is very high and this will accelerate the growth of trees or flowers planted in it. Although this method of cultivation is profitable for farmers and farming, but this activity or method will have an impact on the environment when too much carbon dioxide is released to the atmosphere and trap heat that eventually should be released into our space.
Open Burning
Open burning on a large scale or burning, for example, will also Contribute to the occurrence of global warming . Burning forests for agriculture, Settlements, logging, industrial and so will Increase the concentration of carbon dioxide in the water. This is Because carbon dioxide is supposed to be Used by plants through the process of respiration and Photosynthesis. When all the trees have been cut down and removed, Then the carbon dioxide already gather and trap heat. The annual Open burning has happened with so severe that's cause severe haze in Malaysia in 1997. This incident not only caused The annual Diseases people get asthma, pneumonia, shortness of breath, and so on, but also revealed the number of missing to Contributed to the Increase in ambient temperature
Human Activities
Use of materials that can affect the human environment is also a cause of this problem . Use of materials or biomass for fossil energy sources also have a negative impact on the environment. This is because fossil fuels are burned for energy production would release carbon dioxide, nitrogen dioxide, methane, CFCs and other harmful gases. The use of motor vehicles for transportation purposes also releasing harmful gases into the air, including hydrocarbon gases and so on. When all the gas is released and accumulated in the air, these gases will merge and will form an additional layer in the atmosphere.This additional layer will prevent the reversal of naturally occurring radiation in the atmosphere. This can be proved by the fact generally, the earth is able to reflect back 30 % of the sunlight. The remaining 30 % is absorbed to warm the earth's atmosphere and oceans. The formation of a layer of pollutants in question would indirectly act as a layer of greenhouse gases.
Effects of Global Warming
Thermal Expansion
When water is heated, it expands. Almost half of the sea level rise in the last few centuries due to warmer sea temperatures and need more space. When this happens, it causes sea levels to rise.
Liquidity polar ice caps in the Polar
Usually the polar ice caps will melt at a constant rate in the summer. When it's winter, snow made from evaporated sea water, will offset the dilution rate of return. Since recently, the prolonged high temperatures resulting from global warming has seen liquidity snow faster and higher. Besides liquidity snow also caused by late winter and spring arrives earlier. This imbalance has affected the flow versus evaporation in the sea, and its effect is to increase sea level.
Disappearance of the ice in Greenland and West Antarctica
To the glaciers and polar ice caps, rising temperatures have accelerated the liquidity of large polar ice caps of Greenland and Antarctica. Scientists also believe that the ice melted on the surface and under the sea ice cover is experiencing liquidity at a faster rate.
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| Cute penguins! They want to live! |
Significant Impact Antarctic Ice Liquidity
South Pole, or more commonly known as Antarctica, the ice continent that has a lot of interest. World `Fridge' is crucial in controlling the balance of world temperatures, as well as a plethora of flora and fauna.
It is also used as the research scientists are mainly related to ecological and chronological history of the formation of the earth, besides being a `laboratory' for a number of scientific experiments that require certain conditions.
An area known as the Simple Dome has made the study of Antarctic scientists about the existence of a geographical history.
Scientists have used a special drill to dig core ice sheets . The layers of the ice sheet will respond to several questions about climate change, the time traveled and life has ever existed.
Thawing and freezing of ice that eventually forms ice crystals will give an answer to what was happening on the continent of Antarctica. It is also useful to predict what might happen in the future.
Scientists have used radiochemical method, using specific isotopes to study any time-related changes that have gone through this ice crystals.
It is done through observation of changes in the content of carbon dioxide and methane. Further observations will be linked with past climate change.
But the fact that now, faced with the dilemma of Antarctic ice sheets are melting or collapse said. The main reasons hypothesized by scientists is global warming due to thinning of the ozone layer or leakage.
Antarctica's Dry Valley, observers found the lakes ice are melting. In the 1970s, the size of the ice sheets Paraguay was found to have disappeared , in just three years.
Meteorologists members also found that due to too many human activities, coupled with environmental pollution and industrial commercialization, climate changes will only take a short span of two to five years. This 1995 study also obviously meaningful to the events in the Antarctic ice rubble.
Changes in the weather that is too short is showing the implications of uncertainty in rotation season, particularly drought and rain came suddenly.
Scientists also think that any human-induced change will affect many decades on the environment. This fact is not difficult to understand, because too many real examples that we can see. Deforestation for development, regardless of the cause of the mud contingency plan, global warming due to the reduction of heat absorption by plants and the loss of water catchment areas to supply life. These effects lasted for a period of tens of years.
Study by Gerald Kooyman of the University of California at San Diego is the best example to explain how climate change may affect life.
In 1997 , he discovered that the ice sheets have melted Franklin Islands two weeks earlier than the expected date. This resulted in many penguins die, because do not have enough time to grow up and know how to swim.
Researchers from the center for Ice and Snow Colorado, the United States has obtained from satellite images showing the ice sheets growing demolition and liquid. The researchers also predict that if this situation continues, the entire ice in Antarctica will melt in a few hundred years.
Some scientists concluded sea level rise is due the melting of ice sheets in West Antarctic. They use the argument of global warming due to climate change, which as found in a study of - meteorologists. Ice sheets in the Antarctic seabed were more likely to melt than the pieces of floating ice.
When the ice sheets and ice floating policy is melted entirely, sea level would rise by six meters. This is enough to sink the low city of cities like Jakarta and London. It is also able to sink most of Florida.
There are also scientists who do not believe entirely on theoretical sea -level rise is due to the melting of ice in Antarctica. Robert Bindschadler, an American geophysicist, for example, proposed an alternative hypothesis to explain the phenomenon. Ice flow, according to Robert, is in phase fluctuations are too fast. Thus, pieces of ice are constantly in the process skids. Ice - ice is also said to have collapsed thousands of years ago, and likely will not collapse again for thousands of years. Ice sheets is also not guaranteed to be stable and can not be expected.
Robert's hypothesis may be applied to explain the following facts : In fact, until now there is no real evidence directly showing ice sheets shrinking.
Rise in sea level by an average of two millimeters per year are attributed to thermal expansion of sea water itself. This thermal expansion (due to direct heating), accounting for 44 percent of the extent of sea level rise.
Moving ice sheets would be more `hot ' due to heat through friction. Furthermore, it is easier to decompose shape or move faster. Speculation is raised by the scientists also noted that heat moves to the bottom of the ice sheet will cause ice avalanche occurred more quickly.
A piece of ice 400 meters thick will produce high pressure because of the weight. This situation will force the pieces move faster. Inertia also cause ice sheets are difficult to stop. This situation adds an explanation of the phenomenon of why ice sheets move.
For most of us, the above questions do not have any meaning. In fact, the search for answers to these questions, we can solve a lot of problems or concerns sparked by the phenomenon of liquidity in the Antarctic ice.
Surprise! The Picture of The Arctic If Ice Melt Overall
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| Sabah and Sarawak (left) |
How about Malaysia ? Low-lying areas close to the sea or wholly submerged. Just stay high at the Titiwangsa Mountains, will be the only area that did not sink. Perak, Selangor, Negeri Sembilan, Johor most submerged and can not be occupied again. Sabah and Sarawak is relatively less affected because the two states have much higher ground. Natural disasters this case will change the structure of the world map and the nation as a whole. By the hands of men who continue to damage the environment is not impossible that it will happen. In fact, scientists found that over the years the sea level to rise each year, even a little.
How to save our earth ? We must take an action now! Don't just keep quiet and do nothing. We can prevent from happen. Save our earth, save our planet! :)
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