From 1990 to 1992 Munasinghe was Advisor to the US President's Council on Environmental Quality (PCEQ).
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He was the Vice Chairman of the Intergovernmental Panel on Climate Change (IPCC-AR4), which shared the 2007 Nobel Peace Prize with former Vice President of the United States Al Gore.
Ram Mohan Roy | Vishwa Mohan Bhatt | Crazy Mohan | Madan Mohan | Radha Mohan | Mohan Rakesh | Mohan Joshi | Pyare Mohan | Mohan V. Ram | Mohan Veena | Mohan Joshi Hazir Ho! | A. G. Mohan | Surender Mohan Pathak | Soumitra Mohan | Silpa Mohan Reddy | Saroj Mohan Institute of Technology | Poovilangu Mohan | Murali Mohan | Mohan Wijewickrama | Mohan Upreti | Mohan Sithara | Mohan Singh Kohli | Mohan Krishna Indraganti | Mohan G. Valrani | Mohan Agashe | Madan Mohan Punchhi | Madan Mohan Malaviya | Madan Mohan (director) | K. Krishna Mohan | Kishori Mohan Bandyopadhyay |