The Islamic World Academy of Sciences in collaboration with the Pakistan Academy of Sciences will hold three-day conference on Water-Energy-Food-Ecosystem Nexus for the Security of OIC Countries" in Islamabad today. The conference will be jointly inaugurated by Chairman Senate , Syed Yousuf Raza Gillani and Senator Sherry Rehman. The Water-Energy-Food-Ecosystem nexus is a conceptual framework that emphasizes the interconnectedness and interdependence between water, energy, food, and ecosystems. Source: Radio Pakistan