According to UK Sunday Times report, a new findings by scientists reveal that IPCC report was based on a news story in the New Scientist, a popular science journal.
IPCC report was submitted by India's environmentalist Rajendra Pachauri in 2007.
Scientists also claim that the New Scientist report was itself based on a short telephonic interview with Syed Hasnain, an Indian scientist, the report said.
If confirmed it would be one of the most serious failures yet seen in climate research.
Rajendra Pachauri has previously dismissed criticism of the Himalayas claim as "voodoo science" and last week the IPCC refused to comment on the report.