In June 2014, Mr. Sicars became Director of the then Montreal Protocol Branch of UNIDO, and, in February 2015, was appointed Director of the Department of Environment.

For ten years, he was a Senior Programme Officer with the Multilateral Fund for the Implementation of the Montreal Protocol on Substances that Deplete the Ozone Layer. He was a consultant for eight years providing technical expertise, implementation and policy advice services related to environmental issues; at the same time, he undertook a number of research projects for a wide variety of clients such as international industries, NGOs and governments. He was co-ordinating lead author for IPCC and received the US-EPA Ozone Award.

Mr. Sicars has worked in the Research Center for Refrigeration and Heat Pumps in Germany, the final two years as the Center’s technical director. Mr. Sicars holds a Master’s Degree in Mechanical Engineering from the University of Hanover, Germany, specialised in Energy- and Process Engineering.