The internal screens on the campus of Ain Shams University displayed some guidelines that call for energy conservation and guidance in the consumption of water and electricity alike, as part of the celebrations of the International Earth Day, which was organized by the Community Service and Environmental Development Affairs Sector at the university, under the auspices of Prof. Dr. Mahmoud El-Metini, President of Ain Shams University, and Prof. Dr. Hesham Tamraz, Vice President for Community Service and Environmental Development, Prof. Dr. Abdel Fattah Saoud, Vice President for Education and Student Affairs, and the coordination of Prof. Dr. Gehan Ragab, Professor of Marketing at the Faculty of Business, Advisor to the Vice President for Community Service and Environmental Development, under the supervision of Major General Ahmed Lashin, and the supervision of Mr. Suhail Hamza, the University's Assistant Secretary-General for the Sector.