John Harries, the chief scientific adviser for Wales, is to retire at the end of April.
Harries became the first person to hold the position when he was appointed in May 2010. He is a professor of Earth observation and a member of the Grantham Institute for Climate Research at Imperial College, London.
A Welsh government statement said that the search for a new chief scientist is underway.
This article on Research Professional News is only available to Research Professional or Pivot-RP users.
Research Professional users can log in and view the article via this link
Pivot-RP users can log in and view the article via this link.