The Custodian of the Two Holy Mosques, King Abdullah bin Abdul-Aziz Al Saud has thanked Prince Turki bin Nasser bin Abdul Aziz, President of Meteorology and Environment (PME) Presidency, who is also Chairman of the Executive Office of Arab Ministers Responsible for the Environment and Arab Ministers of environment as well as heads of Arab and international organizations' delegations, who participated in the First Conference of Arab International environmental legislation, which was held recently in Riyadh. This came in a reply message sent by the Custodian of the Two Holy Mosques to the President of Meteorology and Environment in response to an earlier cable of the PME President to the King.