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Boiling point

Boiling point for the first time, in an unequivocal verdict, scientists have held human activities responsible for most of the warming of the Earth's atmosphere over the last 50 years. Latest assessment of scientific studies of climate change by the Intergovernmental Panel on Climate Change (ipcc) predicts that such actions will continue to change the composition of atmosphere throughout the 21st century.

The ipcc report was written by 123 experts from a number of countries and released in Shanghai, China, at a United Nations conference held from January 17 to 20, 2001. The World Meteorological Organisation (wmo) and United Nations Environment Programme (unep) established ipcc in 1988 to address knowledge gaps related to the science, impacts, and policy responses to the climate problem.

The report concludes that warming over the past 100 years was unusual and could not be attributed to natural reasons alone. It says over the past four decades, two major natural factors

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