Rajendra Pachauri has gone a PHD too far.
The bio for IPCC chief Pachauri states:
Commencing his career with the Diesel Locomotive Works, Varanasi, where he held several managerial positions, Dr Pachauri joined the North Carolina State University in Raleigh, USA, where he obtained an MS in industrial engineering in 1972, a Ph.D. in industrial engineering and a Ph.D. in economics. He also served as Assistant Professor (August 1974-May 1975) and Visiting Faculty Member (Summer 1976 and 1977) in the Department of Economics and Business. [Emphasis added]