Scientist Osvaldo Canziani, who was part of the 2007 Nobel Prize winning Intergovernmental Panel on Climate Change, was listed as the scientific advisor to the report.
The IPCC, whose figures were cited as the basis for the study's projections, and Al Gore jointly won the Nobel Prize for Peace in 2007 "for their efforts to build up and disseminate greater knowledge about man-made climate change," the prize committee said at the time.
Canziani's spokesman said Tuesday he was ill and was unavailable for interviews.