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The UN’s journey towards climate neutrality began on 5 June 2007 when UN Secretary-General Ban Ki-moon publicly called on all UN agencies, funds and programmes to ‘go green’ and become climate neutral. The Sustainable United Nations (SUN) coordinates the work of the UN to achieve these goals.

On 5th June 2007 UN Secretary General Ban Ki-moon publicly called on all UN agencies, funds and programmes to become climate neutral and “go green”. In doing so, he took the first step in leading the UN towards greater sustainability and showed the world that the UN system is fully aware of the social and environmental challenges it faces in the 21st Century.

Since then, the UN has come a long way in measuring and reporting about the environmental impacts of its facilities and operations by publishing data about its greenhouse gas emissions, and other environmental indicators such as waste and water management.

Associated to measuring, reduction efforts are underway across the whole UN system mostly organized around an emission reduction strategy, or an environmental management system.

Coordinating this work across the UN System is the responsibility of the Sustainable United Nations (SUN) facility at the United Nations Environment Programme. SUN outputs and reporting work are closely coordinated with a network of ‘Sustainability focal points’ designated by the UN organisations that are member of the Environment Management Group (EMG).