THE IPCC
The International Panel on Climate Change (IPCC), the group that produces the main reports on climate change, is a scientific intergovernmental body set up by the World Meteorological Organization (WMO) and by the United Nations Environment Programme in 1988.
The IPCC process involves hundreds of scientists from about 140 countries, a variety of fields, and a range of views. Their function is to assess the latest peer-reviewed literature, compare different computer model results from various sources, and to achieve consensus about where the weight of the evidence points and where uncertainties lie. And Based on the evidence accumulated over the last 40 years, these are some of their main conclusions. The words in red were very carefully chosen to reflect quantifiable estimates. So Very High Confidence and means the statement has at least a 9 out of 10 chance of being correct, Very Likely means the scientists are more than 90% sure, and Likely means they are more than 66% sure.
2007 Conclusions
• Warming of the climate system is unequivocal • Very high confidence that global average net effect of human activities since 1750 one of warming • Human-caused warming over last 30 years has likely had a visible influence on many physical and biological systems • Continued Green House Gases (GHG) emissions at or above current rates would cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century.”
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