Original: He also established many of the UN's development and environmental agencies, funds and programmes, including the UN Development Programme (UNDP), the UN University, UNCTAD, United Nations Institute for Training and Research (UNITAR), and the UN Environmental Programme.
Simplified: He also established many of the UN's development and environmental agencies, funds and programmes, including the UN Development Programme (UNDP), the UN University, UNCTAD, UNITAR and the UN Environmental Programme.