The 4th World Conference of Urban Environment 2014 entitled "Environment Construction for Promotion of Sustainable Development of Cities'' has concluded its works here. The three-day conference was organized by Riyadh Municipality in cooperation with Dubai Municipality and the Environmental Center for Arab Cities under the auspices of Prince Dr. Mansour bin Miteb bin Abdulaziz, Minister of Municipal and Rural Affairs. Participants in the conference have expressed their thanks and appreciation to the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud for the Kingdom's hosting of this World Conference. They called for setting up an advisory board composed of international experts in the field of environmental construction of cities to provide a strategy that respects the environment and maintains its potentials.