IPCC report determines human activities as cause for 'unequivocal' global warming

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Global warming is a major concern in our times with all its known and unknown implications that are certain to affect us in myriad ways (Reuters) Global warming is a major concern in our times with all its known and unknown implications that are certain to affect us in myriad ways (Reuters)
SummaryReport says earth is getting hotter and sea levels are likelier to rise in the 21st century.

The Intergovernmental Panel on Climate Change, an international body established by the United Nations (UN) in 1988, presented a summary of its latest assessment on climate change on Friday. The key findings are listed below.

*Global warming is 'unequivocal', and since the 1950's it is extremely likely that human activities have been the dominant cause of the temperature rise.

*Concentrations of Carbon di-oxide (CO2) and other greenhouse gases in the atmosphere have increased to levels that are unprecedented in at least 800,000 years. The burning of fossil fuels is the main reason behind a 40% increase in C02 concentrations since the Industrial Revolution.

*Global temperatures are likely to rise by 0.3-4.8 degrees Celsius, or 0.5-8.6 Fahrenheit, by the end of the century depending on how much governments control carbon emissions.

*Most aspects of climate change will continue for many centuries even if CO2 emissions are stopped.

*Sea levels are expected to rise a further 10-32 inches (26-82 centimeters) by the end of the 21st century.

*The Greenland and Antarctic ice sheets have been losing mass over the past two decades. Glaciers have continued to melt almost all over the world. Arctic sea ice has shrunk and spring snow cover has continued to decrease, and it is 'very likely' that this will continue.

*It is 'virtually certain' that the upper ocean has warmed from 1971 to 2010. The ocean will continue to warm this century, with heat penetrating from the surface to the deep ocean.

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