For: Jorma Toppari, Professor, University of Turku, Finland
Professor Jorma Toppari, MD, PhD, is a pediatric endocrinologist who works as a professor of physiology in University of Turku and a chief physician in Pediatrics in Turku University Hospital, Turku, Finland. He is leading a cohort study on developmental determinants of male reproductive health in collaboration with scientist in University of Copenhagen (http://www.edmarc.net/). He has a strong background in basic science and environmental medicine. He has served in editorial boards of several endocrine journals, and he has authored more than 500 publications.

Against: Richard Sharpe, Honorary Professor, MRC Centre for Reproductive Health, University of Edinburgh, UK
Professor Richard Sharpe is an Honorary Professor in the MRC Centre for Reproductive Health at the Queen’s Medical Research Institute, Edinburgh. Until recently he led a research team that played a pivotal role in identifying key aspects of fetal development that shape lifelong reproductive health in males. He is an expert on the inter-relationships between environment, diet/lifestyle, chemical exposures and reproductive health and couple fertility. He has been active in public communication of science and has talked at major UK and US science festivals. He has an H index of 104 with >37,800 citations (Google Scholar).