The World Heritage Sites recognized by UNESCO represent cultural evolution over millennia and this great representation tends to grow due to the importance of the subject and the sustainability criteria that are sought to be achieved.

Today it is very difficult to maintain this Heritage because it requires immense financial and technical resources. But this heritage achieved today for the benefit of all humanity, and especially historical cities and landscapes, have been preserved when the inhabitants of those cities and contexts have managed to maintain them for many centuries and sometimes millennia.
In all cultures, this persistence required evolution through conservation, change of uses, introduction of contemporary technologies, conservation of traditional labor, to evolve while conserving.
Heritage is the greatest source of information and wealth of the culture of its time. It is not about imitating the styles of that culture, but about understanding its patterns (grammar), about articulating (as Umberto Eco proposes in “Obra Abierta”) past, present and future.
For World Heritage to be “Ours”, we must know deeply the language of its time, “read” the identity of the context and propose eventual evolutions that recover the current value of that heritage.
The common language facilitates conservation, and with it the heritage will have an extraordinary ally in the reuse

Rubén Pesci, President of FLACAM (Foro Latinoamericano de Ciencias Ambientales) (Convener of the OWH Sustainability Debate)
Lucía Pesci, Vice-President of FLACAM (Foro Latinoamericano de Ciencias Ambientales) (Convener of the OWH Sustainability Debate)

Yapeng Ou (PhD in Urban Regeneration and Economic Development and Erasmus Mundus Master in Cultural Landscapes Management, and Member of the OWH Sustainability Debate Team)

Luna Rajab (Expert for Culture Heritage, Reconstruction and Local Development UN-ESCWA, UNESCO and Executive Manager/Partner at ACE Architects & Consulting Engineers)
William Palomino Bellido (Manager of the Historic Center of Arequipa and Architect of the FAU-UNSA)
Sergio Los (Professor at the Institute of Architecture of Venice, Italy)

Leo Vignol Lelarge
(Member of the OWH Sustainability Debate Team)

Welcome and presentation of the topic of the session: Rubén Pesci (Spanish)
Ruben Pesci is a recognised initiator in Latin America of thought and action with environmental criteria. He founded the CEPA Foundation in La Plata in 1974, the first environmental NGO in the Region. Doctorate in Madrid in Sustainability and Urban Regeneration, he is one of the top developers of urban projects and plans in Latin America. Forty cities (metropolis, large and small cities) were designed with his leadership. He created and developed the concept of Ambitectura (building inspired by the environment) that he has applied to countless works of architecture, urban design and development. He has received many awards and distinctions, among which include: • Illustrious citizen of La Plata (2018) • International Citizen, Cuernavaca (2017) • Illustrious graduate of the National University of La Plata (2016) • First Prize in Urban Planning, College of Architects of the Province of Buenos Aires (2008) • Second Prize “New Town of Clarendon” Competition, Jamaica, International Union of Architects (2000) • Director UNESCO / FLACAM Chair for Sustainable Development (1995 and continues) • President of FLACAM (Latin American Forum of Environmental Sciences) 1990 and continues. He has been working on La Plata and its region since 1980, especially on projects for the strategic development of the region and the consideration of La Plata as world heritage.

Speaker 1: William Palomino (Spanish)
William Alexander Palomino Bellido is an Architect, graduated in 1996 from the Universidad Naconal de Sn Agustín de Arequipa, Master in Restoration and Rehabilitation of Heritage Madrid (2007, University of Alcalá). He was Head of the Architecture Office of the National Institute of Culture (1997 – 2000), Coordinator of Rehabilitation Projects of the Historic Center of Arequipa, agreement of the Provincial Municipality of Arequipa – Agency Spanish International Cooperation (2000 – 2006). Coordinator of the foundation team for the declaration of Arequipa World Heritage by UNESCO (2000), Coordinator of the Projects Unit of the Sub-Management of the Historic Center of Arequipa (2008-2009), Manager of Urban Development of the District Municipality of Yanahuara – Arequipa (2010), Ordinary Professor of the Faculty of Architecture of the National University of San Agustín de Arequipa (2011-2018). Manager of the Historic Center of Arequipa (2019-2020), President of the Quality Committee of the Faculty of Architecture of the National University of San Agustín de Arequipa (2021)

Speaker 2: Luna Rajab (English)
Luna is an architect, an advocate and an expert on cultural heritage. She developed a passion for architecture and became a firm believer in the role of architects to preserve heritage being in a country with a history of ancient civilizations, Syria. She graduated with a bachelor’s degree in architectural engineering from Damascus University (1993) and earned a (DESS) from École de Chaillot’s program at the Lebanese University (2000). She is currently a partner and executive manager of ACE, an architectural and engineering company that was founded by her father Louay Rajab (1969). Her influence is mostly noticeable in her passion for civic engagement and her contribution to fundamental issues that can have a real impact on the community. She led, coordinated and executed numerous architectural & cultural heritage works for private and public sectors and for UNESCO, UN-ESCWA, JIZ, DGAM, ADA, MWNF, IUAV, IFPO and others, Member of ICOMOS.

Speaker 3: Sergio Los (English)
Sergio Los was born a long time ago in the historic walled city of Marostica in the Veneto region; he studied architecture in Venice where he graduated in 1963. Between 1964 and 1971 he collaborated with Carlo Scarpa in the design and educational activity at the IUAV University of Venice, including several projects. In 1967 he published a book on Scarpa Carlo Scarpa architect poet which was then the first book on his architecture. Now unavailable, it has been reprinted this year in an anastatic edition in 500 numbered copies. Since 1964 he has been engaged in teaching and research on the composition of multi-scale architecture understood as a symbolic system, he was Professor of Interior Architecture (1965-1971); Professor of urban planning (1972-1978); Professor of Architectural Composition (1979-2000). He has developed many projects and constructions of bioclimatic, regional and sustainable architecture, at various scales. PLEA Prize in 2006 to Louvain La Neuve together with Natasha Pulitzer; Eurosolar Prize in 2003 in Berlin; Pioneer Award in Florence 1998. He has had several architectural firms in different cities together with the architect Natasha Pulitzer with whom he collaborates: Venice, Padua, Milan, Vicenza, Bassano del Grappa where he currently works and lives. Recent publications are Geography of architecture and cities and landscapes as symbolic systems. those interested can look at the site:

Q&A and discussion with moderator Yapeng Ou (English)
Yapeng Ou is a researcher in rural-urban regeneration, innovation economies, and sustainable development. He is the co-editor of a thematic book on global irrigated rural landscapes. He is a member of the Interim Steering Committee of UNESCO Global Youth Community. Ou was a representative at the 11th UNESCO Youth Forum (France), Global Landscapes Forum (Ghana), and World Heritage Young Professionals Forum (Azerbaijan). He worked as a consultant at the UNESCO World Heritage Centre on the Retrospective Inventory Project and conducted research on transboundary world heritage, and as a member of the Italian Organising Committee of the 18th ICOMOS General Assembly and collaborated on the publication of the conference proceedings. Ou holds a PhD in Urban Regeneration and Economic Development and Erasmus Mundus Master in Cultural Landscapes Management.