GLOBAL WARMING

Since ancient times human beings up to now, human beings have always experienced growth in each time period that was spent. Human civilization now has undergone a lot of progress. During development, the man living with dependent on farming and agriculture. Through the life orientation, human beings are always trying to maintain and preserve its environment as well as possible with the aim to maintain the survival of mankind. Humans now have experienced times of the industrial revolution that took the life of the industrial field. Using the orientation of the agricultural world, life seemed to decline slowly. The value of human life has undergone a change, especially in human interaction with the environment.

The changes that happen to produce a positive impact or negative. One of the effects of the industrial revolution that has taken place and continues on the present in lives and human civilization is its impact to the environment around the man himself. The expansion of work done by the perpetrators of industries such as the construction of factories and manufacturing production with large capacity with override concern for the impact to the environment is slowly but surely have resulted in negligence will ultimately be detrimental to the environment human habitation and life.Environmental experts have found indication of impacts to the environment and the world's largest globally due to the efforts of industry does and has been growing rapidly at this time. This is the negative impact of warming in the world and is often referred to as Global Warming. However, the problem of Global Warming as an environmental issue of this truth is still debated by some who think Global Warming is the reason which was created to restrict the pace of industrial development. Although there is still debate about the correctness of State Global Warming among the experts of the environment, the problem of Global Warming is not diungkiri to be researched and examined further for the sake of the continuity of human life.

GLOBAL WARMING

Global warming or Global Warming is the process of increasing the average temperature of the atmosphere, oceans, and landmasses of Earth.

The global average temperature at the Earth's surface has risen 0.74 ± 0.18 ° C (1.33 ± 0.32 ° F) during the last hundred years. The Intergovernmental Panel on Climate Change (IPCC) concluded that, "most of the increase in global average temperatures since the mid-20th century is very likely due to the increased concentration of greenhouse gases due to human activities". via the greenhouse effect. These basic conclusions have been raised by at least 30 scientific and academic bodies, including all of the National Academy of science of the G8 countries. However, there are still some scientists who disagree with some of the conclusions of the IPCC put forward.

Climate models project that the reference made by the IPCC shows global surface temperature will increase 1.1 to 6.4 ° C (2.0 to 11.5 ° F) between 1990 and 2100. Difference of estimates was caused by the use of different scenarios of emissions of greenhouse gases in the future, as well as models of different climate sensitivities. Although most of the research focused on the period up to 2100, warming and sea rise is expected to continue for more than a thousand years, although the level of greenhouse gas emissions have stabilized.This reflects the magnitude of the heat capacity of the oceans.

Rising global temperatures are expected to lead to other changes such as rising sea levels, increasing the intensity of extreme weather phenomena, as well as change the amount and pattern of precipitation. The consequences of global warming are another terpengaruhnya agricultural output, the loss of glaciers, and punahnya the different types of animals.

The Causes Of Global Warming

1. greenhouse effect

All sources of energy on earth comes from the Sun. Most of the energy in the shape of shortwave radiation, including visible light. When this energy is reached the Earth's surface, he turned from the light into heat that warms the Earth. The surface of the Earth, will absorb the most heat and reflect it back the rest. Some of this heat takes the form of long-wave infrared radiation to space. But most of the heat stays trapped in the Earth's atmosphere due to overwrite the amount of greenhouse gases include water vapor, carbon dioxide, sulfur dioxide and methane into the trap this radiation wave. These gases absorb and reflect back the wave radiation emitted from the Earth and as a result the heat stored in the Earth's surface. This state occurs continuously resulting in an annual average temperature of the Earth is increasing.

2. the effect of Feedback

the causes of global warming are also influenced by feedback processes it generates. An example is the evaporation of water. In the case of warming due to increasing greenhouse gases such as CO2, warming initially will cause more widespread water evaporates into the atmosphere. Because water vapor is itself a greenhouse gas, the warming will continue and increase the amount of water vapor in the air to achieve an equilibrium concentration of water vapour. The greenhouse effect it produces is greater when compared by due to CO2 gas. (Although this feedback increases the absolute moisture content in the air, relative humidity of air is nearly constant or even decreases slightly because the air becomes warmed up).[3] this feedback effect only slowly because CO2 has a long age in the atmosphere. Another important feedback is the loss of ability to reflect light (albedo) of ice.[4] when global temperatures increase, ice near the Poles melts with increasing speed. In conjunction with the melelehnya the ice, land or water beneath it will open. Both land and water has the ability to reflect light less when compared to the ice, and as a result it will absorb more solar radiation. This will add to the warming and cause even more ice melts, it becomes a continuous cycle.

This Is Some Scene From The Effects Of Global Warming

1.      Fire

Forest fires his usual d skyrocket his surface temperature increase d the area due to the effects of global warming. occur in the summer time.

2.      Ice Melts

The melting of the ice dikutub in the temperatures skyrocket rise drastically so it can melt the polar ice caps.

3.      The Surface Of Sea Water Rises

High sea level rise is caused by water ice that has melted from the direction of the pole.

Ref      : https://www.facebook.com/notes/debit-ridhawati/global-warming-pengertian-penyebab-efek-cara-mengatasi-/10150531758072256