Global Warming


Global Warming or Global Warming is the process of increasing the average temperature of the atmosphere, ocean, and land Earth.

The average temperature at Earth's surface globally has increased ± 0.74 ° C 0:18 (1:33 ± 0:32 ° F) during the last hundred years. Intergovernmental Panel on Climate Change (IPCC) concluded that, "most of the increase in temperature of the global average since the mid-20th century, most likely caused by increased greenhouse gas concentrations, greenhouse gases due to human activities" through the greenhouse effect. These basic conclusions have been expressed by at least 30 scientific and academic bodies, including all the national science academies of the G8 countries. However, there are still some scientists who disagree with some of the IPCC conclusions are presented.

Climate models referenced by the IPCC project shows the global surface temperature will rise 1.1 to 6.4 ° C (2.0 to 11.5 ° F) between 1990 and 2100. Estimate the difference was caused by the use of different scenarios of gas emission of greenhouse gases in the future, as well as models of different climate sensitivities. Although most research focuses on the period up to 2100, warming and sea level rise is expected to continue for more than a thousand years even if the level of greenhouse gas emissions have stabilized. This reflects the large heat capacity of the ocean.

Increasing global temperature is expected to cause changes such as sea level rise, increased intensity of extreme weather phenomena, as well as changes in the number and pattern of precipitation. The consequences of global warming is terpengaruhnya crops, loss of glaciers, and the extinction of various species of animals.

Some of the things that scientists still doubt is about the amount of warming predicted to occur in the future, and how warming and the changes that occur will vary from one region to another. Until now still going political and public debate in the world about what, if any, action should be taken to reduce or reverse the further warming or to adapt to the consequences that exist. Most of the government of the countries in the world have signed and ratified the Kyoto Protocol, which leads to the reduction of gas emissions greenhouse gases.

Source: http://id.wikipedia.org/wiki/Pemanasan_global