NIPCC organized an international climate workshop in Vienna in April 2007 , to provide what they called an independent examination of the evidence for climate change .
Singer set up the Nongovernmental International Panel on Climate Change ( NIPCC ) after a 2004 United Nations climate conference in Milan .
NIPCC organized an international climate workshop in Vienna in April 2007 , to provide what Nongovernmental International Panel on Climate Change called an independent examination of the evidence for climate change .
Singer set up the Nongovernmental International Panel on Climate Change ( NIPCC ) after a 2004 United Nations climate conference in Milan .