The UN agency that took initiatives for the introduction of environmental education was:

UNESCO led the global initiative to introduce and promote environmental education.

It launched the International Environmental Education Programme along with the UN Environment body.

The FAO focuses on food and agriculture rather than environmental education campaigns.

UNICEF concentrates on children's welfare, health and rights, not this programme.

The UNDP works on broad development goals but did not spearhead environmental education.

The 1977 Tbilisi Intergovernmental Conference, organised by UNESCO, set its guiding principles.