Global warming is the process of increasing the average temperature of the atmosphere, oceans and the Earth's land.
Global average temperature at Earth's surface has risen 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 global average temperatures since the mid-20th century most likely caused by increased concentrations of greenhouse gases due to human activities" [1] via the greenhouse effect. These basic conclusions have been advanced by at least 30 scientific and academic bodies, including all the national science academies of the G8 nations. However, there are still some scientists who disagree with some conclusions that the IPCC noted.
Climate models referenced by the IPCC projects show global surface temperature will rise 1.1 to 6.4 ° C (2.0 to 11.5 ° F) between 1990 and 2100. [1] The difference in estimates was caused by the use of different scenarios of greenhouse gas emissions greenhouse gases in the future, as well as models of different climate sensitivities. Although most studies have focused on the period up to 2100, warming and sea level rise is expected to continue for more than a thousand years even if greenhouse gas emission levels have been stable. [1] This reflects the large heat capacity of the oceans.
Increasing global temperatures are expected to lead to other changes such as rising sea levels, increased intensity of extreme weather phenomena, [2] and changes in the number and pattern of precipitation. Consequences of global warming is another character of agricultural output, loss of glaciers, and the extinction of various animal species.
Some of the things that scientists are still doubtful 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, there are still political and public debate in the world about what, if any, action should be taken to reduce or reverse further warming or to adapt to the consequences that exist. Most of the governments of the world's countries have signed and ratified the Kyoto Protocol, which leads to reduction of emissions of greenhouse gases.
Global average temperature at Earth's surface has risen 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 global average temperatures since the mid-20th century most likely caused by increased concentrations of greenhouse gases due to human activities" [1] via the greenhouse effect. These basic conclusions have been advanced by at least 30 scientific and academic bodies, including all the national science academies of the G8 nations. However, there are still some scientists who disagree with some conclusions that the IPCC noted.
Climate models referenced by the IPCC projects show global surface temperature will rise 1.1 to 6.4 ° C (2.0 to 11.5 ° F) between 1990 and 2100. [1] The difference in estimates was caused by the use of different scenarios of greenhouse gas emissions greenhouse gases in the future, as well as models of different climate sensitivities. Although most studies have focused on the period up to 2100, warming and sea level rise is expected to continue for more than a thousand years even if greenhouse gas emission levels have been stable. [1] This reflects the large heat capacity of the oceans.
Increasing global temperatures are expected to lead to other changes such as rising sea levels, increased intensity of extreme weather phenomena, [2] and changes in the number and pattern of precipitation. Consequences of global warming is another character of agricultural output, loss of glaciers, and the extinction of various animal species.
Some of the things that scientists are still doubtful 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, there are still political and public debate in the world about what, if any, action should be taken to reduce or reverse further warming or to adapt to the consequences that exist. Most of the governments of the world's countries have signed and ratified the Kyoto Protocol, which leads to reduction of emissions of greenhouse gases.
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