Latest Member - South Sudan, admitted to the UN in July 2011.
UNEP was established following the United Nations Conference on the Human Environment in Stockholm, Sweden, in June 1972.
The decision to place its headquarters in Nairobi made it the first UN body to be headquartered in the Global South.
AIM - The primary aim is to provide leadership and encourage partnership in caring for the environment by inspiring, informing, and enabling nations and peoples to improve their quality of life without compromising that of future generations.
It specifically focuses on finding solutions to the "triple planetary crisis": climate change, nature and biodiversity loss, and pollution and waste.