Under the patronage of the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud, Prince Turki bin Nasser bin Abdulaziz, General President of the Meteorology and Environment Protection will open here on Sunday evening, the Gulf International Forum and Exhibition on Environment and Sustainable Development. On the occasion, Prince Turki bin Nasser bin Abdulaziz, expressed appreciation of and thanks to the Custodian of the Two Holy Mosques for his patronage of this Forum.