Professor Henrik Grum Kjærgaard received his PhD in Physics in 1992 from the University of Odense, and then moved to Canada as a post-doctoral fellow at the University of Guelph. He then moved to New Zealand in 1997 and moved up the ranks from Lecture to Professor, and left New Zealand in 2009 to take on his current position in the Department of Chemistry at the University of Copenhagen. He has had a number of sabbaticals and have received awards for his contribution to chemical science. His research focus is in theory and spectroscopy of hydrogen bonds and atmospheric reaction mechanisms. He has served on both the New Zealand and Danish research councils. He has published about 250 papers in physical/theoretical/atmospheric chemistry and have graduated 20 PhD students.