HE the Chairman of the Administrative Control and Transparency Authority Abdullah bin Hamad Al-Attiyah, who is also President of the UN 18th Conference on Climate Change (COP 18) , and his accompanying delegation arrived in Warsaw today on a several days visit to participate in the Climate Change Conference (COP 19) . HE Al Attiyah was received upon arrival at Warsaw International Airport HE Al-Attiyah Qatar's Ambassador to the Republic of Poland HE Hadi Nasser Mansour Al Hajri .(QNA) Administrative Control and Transparency Authority Chairman Leaves for Poland Doha, November 07 (QNA) - HE the Chairman of the Administrative Control and Transparency Authority Abdullah bin Hamad Al-Attiyah, who is also President of the UN 18th Conference on Climate Change, and his accompanying delegation left Doha this morning heading for the Republic of Poland on a several-day visit. HE Al-Attiyah will participate during the visit in the Climate Change Conference (COP19) to submit the conference file to the Polish Environment Minister to officially mark the conclusion of the Climate Change Conference (COP18) and hand over the file to the host country, Poland.