Monday The Athens Summit 2008 on «Climate Change and Energy Security,» begins at 10 a.m. at the Athens Hilton Hotel. President Karolos Papoulias will make the opening address. Speakers include Prime Minister Costas Karamanlis, Development Minister Christos Folias, PASOK leader George Papandreou and European Commissioner for the Environment Stavros Dimas. To Wednesday. For details, log on to www.athens-summit.com. Within the framework of the summit, the «Declaration of Athens,» will be signed on climate change by more than 20 ministers from Europe, the Middle East and the Mediterranean region. Deputy Education Minister Spyros Taliadouros to attend the first Asian-European meeting of education ministers in Berlin, Germany. To tomorrow. Transport Minister Costis Hatzidakis to attend informal meeting of EU transport ministers in Slovenia. Athens Mayor Nikitas Kaklamanis holds a press conference to present the first «Green Rooftops – Blooming Balconies» fair, which opens Tuesday in Kotzia Square. At noon at Athens City Hall. The Hellenic American Union is hosting the first Athens international forum, titled «Security,» starting at 8.30 a.m. at the Athens Hilton Hotel. To tomorrow. For further details, call 210.368.0006 or log on to www.hau.gr. Tuesday The Gennadius Library holds a lecture on «Imagining Constantinople,» by Cyril Mango, professor emeritus at Oxford University, starting at 7 p.m. at Cotsen Hall (9 Anapiron Polemou). For details, call 210.721.0536 or log on to www.gennadius.gr. The first «Green Rooftops – Blooming Balconies» fair opens in Kotzia Square and will run through Monday. Athens Mayor Nikitas Kaklamanis will open the exhibition at 7 p.m. For details, log on to www.cityofathens.gr. Thursday Foreign Minister Dora Bakoyannis to be awarded the European Prize of Regional Policy and Local Authorities at a special ceremony in Innsbruck, Austria. The Athens Institute for Education and Research hosts the fourth international conference on «Fitness, Health and Active Living,» at the Metropolitan Hotel on Syngrou Ave. For details, call 210.363.4210 or log on to www.atiner.gr. Friday Archbishop Ieronymos pays his first official visit to the Ecumenical Patriarchate in Istanbul. The American Community Schools are hosting the third annual conference on learning differences, «Daring to Dream,» starting at 3 p.m. at the schools’ campus. To Saturday. For details, call 210.639.3200 or log on to www.acs.gr. The UN High Commissioner for Refugees in Greece and the University of Macedonia host an event titled «Refugees,» starting at 6 p.m. at the Museum of Byzantine Culture in Thessaloniki. Macedonia-Thrace Minister Margaritis Tzimas will attend. The event includes a photo exhibition, music and video screening. For details, call 210.672.6462 or log on to www.unhcr.gr.