Ozone Secretariat


HQ: Nairobi, Kenya

Focal Point: Dan Teng'o 


Secretariat for the Vienna Convention and the Montreal Protocol 

Key Figures



“In addition to protecting the ozone layer, the Montreal Protocol has brought an additional benefit of mitigating climate change by helping to avert the emission of more than 135 billion tonnes of carbon dioxide equivalent into the atmosphere; one of the most important climate mitigation contributors. The achievement of Montreal Protocol parties at the global level has inspired us to work towards climate neutrality by offsetting emissions associated with our meetings and operations as we continue to fulfill our mission.”

Tina Birmpili, Executive Secretary, Ozone Secretariat


The Ozone Secretariat’s mission is to facilitate and support the Parties to the Vienna Convention and the Montreal Protocol and other stakeholders as appropriate, in implementing actions to protect and heal the ozone layer against adverse impacts resulting from its modification, thus protecting human health and the environment, including minimizing impacts on climate.


Since 2014, the Ozone Secretariat has measured the carbon footprint of all meetings held and operations conducted under the Montreal Protocol and offset the greenhouse gas (GHG) emissions created.

For 2015, the Secretariat purchased an equivalent of 1,772 tons of carbon dioxide (CO2), the GHG emissions associated with travels to the meetings and related operations in 2015, determined in accordance with the principles of the UN Greenhouse Gas Inventory.

The Secretariat worked in collaboration with the UN Framework Convention for Climate Change (UNFCCC) Secretariat to determine the carbon footprint and purchase Certified Emission Reductions (CERs) from the Adaptation Fund, which finances projects and programmes to help developing countries adapt to the negative effects of climate change.

UNFCCC issued a certificate confirming the voluntary cancellation of 1,772 Adaptation Fund CERs from the Clean Development Mechanism for the purpose of compensating the unavoidable GHG emissions from the facility and travel operations of the Ozone Secretariat in 2015, while supporting mitigation and adaptation projects.

Most of the offset travel emissions were from meeting participants – Secretariat-funded and self-paying. The Secretariat offset the entire flight footprint to make the meetings climate-neutral. Secretariat staff travel accounted for about 5 per cent of total air travel emissions.

The offset carbon footprint included emissions created by travels associated with meetings of the Open-Ended Working Group of the Parties to the Montreal Protocol, Meeting of the Parties to the Montreal Protocol, all meetings of the Assessment Panels of the Protocol and the Secretariat’s facility and travel operations in 2015.

The emissions were measured using a web-based carbon calculator created by the International Civil Aviation Organization (ICAO).


The Ozone Secretariat continues to strive towards climate neutrality and is planning to measure the carbon footprint of all future Vienna Convention and Montreal Protocol meetings, including the meetings of the assessment panels of the Montreal Protocol, and related operations, and offset the associated greenhouse gas emissions.