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Career Jean-Pascal van Ypersele is Vice-Chair of the Intergovernmental Panel on Climate Change ( IPCC ) , and participates as scientific adviser to the United Nations conferences on climate issues .
 Jean-Pascal van Ypersele, Intergovernmental Panel on Climate Change, United Nations
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jean-Pascal van Ypersele, Intergovernmental Panel on Climate Change, United Nations