Stelios Pesmajoglou


Stelios has more than 14 years of national and international experience on a broad range of issues relating to climate change. His main area of expertise is policy and technical aspects of climate change mitigation, including: negotiations on climate change issues; evaluation of mitigation options for the reduction of greenhouse gas emissions; development of guidelines on reporting and review of information under the UNFCCC and its Kyoto Protocol; preparation and technical evaluation and auditing of greenhouse gas emission inventories; and national reports on actions to address climate change.

Between October 1999 and July 2008, Stelios worked at the UNFCCC secretariat, where he held positions of increasing responsibility. From January 2006 until July 2008, he was the leader of the Analysis and Methods sub-programme that dealt with: mitigation of climate change; land use, land-use change and forestry (including reducing emissions from deforestation in developing countries); emissions from international aviation and maritime transport; and research and systematic observation. Stelios organized all workshops for the dialogue on long-term cooperative action to address climate change and coordinated the drafting of the final report by the co-facilitators – the result of the negotiations on this dialogue was the adoption of the Bali Action Plan in December 2007.

Between October 1999 and December 2005, Stelios worked on both methodological and political issues, including: supporting the negotiations on the development of guidelines on reporting and review of information under the Convention and the Kyoto Protocol; and contributing to the development of rules and modalities for the three Kyoto mechanisms (international emissions trading, clean development mechanism and joint implementation). Stelios coordinated and organized greenhouse gas inventory review activities, and undertook and supervised methodological work related to the improvement of methods for the estimation of greenhouse gas emissions from various sources.

Stelios is a contributing author to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories and the WBCSD/WRI Greenhouse Gas Protocol.

Before joining the UNFCCC secretariat, Stelios worked at the National Observatory of Athens, in Greece, (March 1995 to September 1999) where he participated in the national delegation responsible for the negotiations on the Kyoto Protocol. As an expert adviser to the Greek Ministry for the Environment, Physical Planning and Public Works, he participated in national and international meetings and workshops that focused on the implementation of policies and measures, particularly for the energy sector. Stelios established the basis of a national system for the preparation of national greenhouse gas inventories of Greece and compiled inventories of emissions of greenhouse gases and ozone precursors for Greece. He also participated in national and international research programs that dealt with developing energy supply and demand scenarios on CO2 emissions for Greece; implementation of wind energy projects; and the development of environmental pressure indicators for air pollution and acidification.

Stelios completed his studies at Imperial College of Science, Technology and Medicine (London, United Kingdom) and has a Bachelors degree in Aeronautical Engineering; a Masters degree in Computational Fluid Dynamics and Structural Mechanics; and a Doctorate in Aerodynamics of Wind Turbines.

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