5 . Ms. Puri ( Assistant Secretary-General , United Nations Entity for Gender Equality and the Empowerment of Women ( UN-Women ) ) , introducing the report of the Secretary-General entitled `` Integrating a gender perspective into national development strategies '' ( A/66/219 ) , said that the United Nations had strong evidence that gender-sensitive approaches , together with women 's full participation in political and economic processes at all levels , translated into more sustainable solutions to the challenges facing the global community , such as those involving economic growth , food security , climate change and conflict resolution .