Mohsen Aboulnaga

Climate change is causing a serious impact across the world with many droughts, floods, and destruction of cities’ infrastructures. The absence of adequate international and national climate policies in addition to citizens’ behaviour and attitude in their daily lifestyle is contributing immensely to carbon emissions and consequently climate change (CC). To mitigate CC and its risks, research and government actions should focus on humans’ behaviour to enhance their performance towards building resilient cities, low-carbon communities, and better healthy environments. Citizens’ daily activities such as energy consumption, water use, and means of transportation as well as recycling procedures should be examined. The objective of this study is centred on understanding and examining the psychosocial causes of human behaviour impact towards climate change, primarily through assessing the patterns of reproduction and consumption to mitigate severe impacts and risks of CC through knowledge and citizens’ behaviour change. The methodology is based on qualitative and quantitative approaches. The first approach focuses on the psychological understanding of human behaviour to analyze human daily activities, while the quantitative approach is centred on data collection and a questionnaire targeting different citizens, living in different counties, with variable work backgrounds and ages to calculate carbon emissions from their daily activities and identify which activities generate the highest GHG emissions. Results indicate that humans generate 23.7 tons of carbon dioxide (CO2) emissions per year, which is twice the rate when compared with the UK’s Average Footprint – estimated at 9.5 tons only. The study provides guidelines and recommendations to mitigate climate change, achieve resilient cities, and healthy and liveable communities in addition to enhance humans’ daily lifestyle, especially in the age of COVID-19.

Green urban coverage (green roofs, green walls and urban farming) has been extensively used in many countries around the world to offset the heat-related problems in cities resulting from severe climate change events. Rapid urbanization and population increase contribute to increasing urban heat island effect (UHIE) and climate change in megacities. Hence, utilizing urban green coverage can assist in reducing CO2 emissions and enhance air pollution in megacities. This chapter presents a review study on the policies and laws regulating the design and implementation of green roofs internationally and regionally. The chapter also highlights and discusses policies’ types enacted for implementing green roofs in Europe, North America, South America and Asia as well as Australasia and MENA region. Examples of green roofs, green walls and urban farming are presented and discussed.

Unplanned urban areas are considered one of the major challenges amid the fact that 70% of world’s population will be living in cities by 2050. This chapter presents a study conducted on one of the unplanned urban areas (informal areas) in Cairo, Egypt, in an attempt to provide guidelines for upgrading informal areas in developing countries based on sustainability indicators deduced from a comparative analysis of global case studies and a local case in Cairo, Egypt. The objective of this work focuses on informal areas (slums) from the economic, social, and environmental viewpoint to develop a surrounding community and increase the inward investment in the urban area. Qualitative and quantitative approaches were used in this study. The study presents an assessment of different informal areas around the world concerning sustainability and strategic environmental assessment (SEA). Two models developed by GIZ and Norman Foster were presented and compared according to a well-planned sustainable development goals checklist. In addition, a detailed assessment was also conducted to assess the local case study based on economic statistics and other sustainable development (SD) dimensions—livability, viability, and equitability. The SEA analysis includes three categories: urban, socioeconomic, and environmental. Results show that the potential of this assessment in upgrading informal areas concerning developing countries is promising. The SEA results also indicate that upgrading informal areas is a successful process when cooperation between authorities and residents exists to cover all SD pillars and the existence of ecosystems to ensure the resilience of urban areas in cities and attain sustainable development goals mainly SDG 11, SDG 12, and SDG 13.

The continuous rise in energy demands due to rapid urbanization and human activities puts immense pressure on local governments and cities globally, especially amidst the COVID-19 crisis and economic slowdown. Hence, developing cities and buildings towards net-zero goals is becoming urgent and significantly vital to adopt renewable scenarios in the building sector given the climate crisis. The outcome of the United Nations Framework Convention on Climate Change (UNFCCC) Conference of Parties (COP26) agreed on and declared the Glasgow Climate Pact (GCP) which stated the serious concern of climate and weather extremes and their adverse impacts on people and nature that will continue to increase with an additional increment of rising temperature. The GCP reaffirmed the long-term global goal to hold the increase in global average temperature to well below 2 °C below-industrial real levels in addition to recognizing that limiting global warming to 1.5 entails rapid, deep, and sustained reduction in global greenhouse gas (GHG) emissions by 45% by 2030 and to contribute towards climate-neutral cities and reasserted the goal of net-zero by 2050. Hence, city leaders should focus on reducing carbon emissions by 2050. Nevertheless, if global warming is to be limited to 1.5 °C, all cities need to be net-zero by 2050 at the very latest. Therefore, net-zero, low-carbon building and clean mobility can play a great role in achieving climate neutrality by 2050. This book chapter aims to address the urgent need to transform the building industry and cities to become low carbon. The chapter highlights the importance of net-zero low-carbon cities. It also presents global examples of net-zero-energy buildings (NZEBs) and how these models contribute to the net-zero target and climate neutrality. Additionally, current policies, actions, and initiatives worldwide and in Egypt towards NZEB to achieve green and sustainable cities have also been examined and discussed. Ultimately, net-zero carbon and managing “transition” remain a huge challenge for cities and regions, but coupling these goals with innovative thinking for the future is primarily essential if cities worldwide are to become resilient enough and meet COP26 outcomes and the GCP.

Throughout history, wood as a building material has been used extensively thousands years ago. It is considered the second known building material after stone; thus, it is recognized as an ancient building resource material. However, wood as a natural rigid material of plant origin has been substituted and associated with man-made common rigid materials in the building construction such as steel and concrete that are characterized with higher carbon emissions and lower sustainability. But with the rise of environmental stewardship in response to the high carbon emissions in cities, sustainable material usage in buildings has reached spotlights. Wood or timber is recently revitalized in contemporary construction as a sustainable built material for being highly renewable and nontoxic and having low embodied energy feature, even though it has been recently used in skyscrapers. In addition, stakeholders are encouraged to integrate timber in all various building types and to reinvest the sustainable material in construction for its recognized insulation, durability, flexibility, affordability, and aesthetic nature, not to ignore the benefits of wood to the building occupants in enhancing their emotional and physical connection with their occupied spaces. This work is intended to compose a significant achievement in educating architects to look at subjects normally ignored and to consider the use of organic material such as wood (timber) in meaningful ways. It focuses on enriching the knowledge base of sustainable wood and lumber in new and existing buildings by highlighting the advantages and disadvantages of timber material usage; it also aims at encouraging the sustainable experience of timber and broadens its usability and functionality in the industry. In this book chapter, local and global existing building cases are reviewed and assessed for the integration of timber as a construction material in the structure, skeleton, interior, and façade of these buildings. The advances and drawbacks of timber usage in construction are highlighted through the assessment of cases. Finally, a comparative analysis that emphasizes the sustainability of timber as a building material in different case studies is provided. Further, life cycle analysis of timber usage in buildings is to be studied.

Abstract

Vernacular architecture is the traditional architecture built by indigenous (local) people in a country. It can be considered sustainable as it exhibits the consideration of environmental, social, cultural and economic factors. Vernacular architecture has been built in many countries around the world. It reflects the culture and tradition of indigenous people using simple forms and local materials supported by simple construction skills. Africa has many examples of vernacular architecture using natural resources within reach locally. Also, Latin America, Asia and Europe show various and similar examples. By-and-large, vernacular architecture illustrates many aspects of sustainability and addresses sustainable development requirements in terms of needs and limitations. Nonetheless, vernacular buildings demonstrate compliance with and adherence to basic green principles. This chapter focuses on vernacular architecture in general and presents leading global and regional traditional buildings, including examples in Africa (58 countries) and Middle East (13 countries) to learn about and detect synergies and to assist in better understanding of the vernacular architecture worldwide and the selected cases in Egypt. In this review, building types, materials, elements of structure and forms were illustrated and assessed. Factors influencing vernacular architecture in many countries are presented and discussed. Comparison between vernacular architecture examples in Africa was conducted in terms of building types and climatic region, specifically under parameters such as building shape (form), colour and materials as well as structural and sustainability features. In addition, examples of vernacular architecture in Egypt were reviewed and illustrated, mainly: Aswan, Luxor and Western Desert. A comparison between examples of vernacular architecture in Siwa Oasis in Egypt was conducted in terms of use, building materials, structure and project description as well as social sustainability, economic sustainability and environmental sustainability. Finally, lessons learned from global, regional and Egyptian vernacular architecture as well as sustainability guidelines for future development are outlined.

Keywords: Vernacular architecture Sustainability principles Sustainable materials Guidelines Africa Egypt

This article presents an assessment of sustainability conducted post the opening of the National Museum of Egyptian Civilization (NMEC), which underwent vast development that had significant impacts, not only on the global level but also on the international attention towards Egypt’s great civilization. The study investigates the impact of the NMEC’s environmental, social, and economic sustainability and cultural value. Both qualitative and quantitative approaches were adopted. The qualitative includes a preliminary study followed by site visits for collecting data and mapping the four sustainability pillars: environmental, social, economic, and cultural. The quantitative approach has been conducted by exploiting 33 indicators to measure five sustainability dimensions in addition to the UNESCO 15 Thematic Indicators for Culture in the 2030 Agenda; the impact of NMEC on social media using the data scraping technique exploiting GitHub. Energy audit results illustrate that the total annual energy consumption is 491,376.00 kWh (79% in the ground fl. & 21% in the Mummies fl.), as well as 19.98 kWh/m2 (Gr. fl.) and 144 kWh/m2 (Mummies fl.); the first matches RIBA’s benchmark for museums, well below the ranking ‘Good’ (50 kWh/m2). Social sustainability impacts indicate that the word count’s effect on social media is 27%, 31%, and 42% on Facebook, Instagram, and Twitter, respectively, while the number of followers is 92%, 7%, and 1%. On Google, it is 1275 and ranks 4.7, whereas the number of posts is 231, 350, and 258. Economic sustainability assessment has been addressed by calculating the revenues throughout one year since the grand opening, and the total revenues amount to USD 2,794,047. The cultural sustainability assessment showed a positive response to the evaluation recorded for 9 out of 15 indicators. The sustainability assessment of the NMEC plays a key role in assuring livable and regenerative cities.

Cities worldwide face many challenges, primarily climate change risks, urban population increase, and high resources use. The objective of this work is centered on revitalizing the abandoned factory of ex-Zanussi factory in the city of Conegliano, north of Venice Italy to be a city hub of sustainability. This paper present the attempt that was carried out to regenerate the old building to be green and sustainable site by utilizing urban farm technologies based on soilless solutions. Also, the retrofitted building and site aim at strengthening the capacity of the city of Conegliano economically, socially, and environmentally. The philosophy of planning and redesigning the site was centered on architectural and urban farming innovation. Many smart solutions were exploited onto the facades to turn this building and site into a live hub. The retrofitted building includes inspiring domes with revolving light wells to allow natural lighting of Conegliano and to reduce energy consumption, hence, mitigate CO2. Also, LED facades, ETFE cushions and rainwater harvesting as well as ZIP grow and recycled bricks. In addition, mobile application was used to enhance the learning experience, self-learning of urban farming, and what could be possibly done through the education facility. A business model, including the strategy, SWOT, operation cost, and a feasibility study were developed to best inform on the revenues from the project to reduce employment. Results indicate that by integrating agriculture with architecture using smart technologies could lead to economic growth, society integration, and achieve livability. Moreover, the diversity of users and mixed activities with nature are materialized. Finally, the project supports the city of Conegliano’s efforts in achieving successful interaction between technological and social innovation, and assists local governments in meeting Paris Agreement targets in Italy, yet attains SDGs, mainly SDG 7, 9, 11, 12, and 13.

The Coronavirus (COVID-19) pandemic has catastrophic impacts worldwide between 2020 and 2021. Such a pandemic highlighted the importance of healthy spaces in all types of buildings, particularly: public, commercial, educational, and residential buildings during the lockdown periods in 2020 and 2021. In light of the urgent need for healthy spaces amid COVID-19, indoor environmental quality (IEQ) is significantly vital to provide healthy buildings and cities. Thus, it is imperative to ensure and guarantee thermal comfort, natural ventilation/cross ventilation, daylighting, and sunlight provision to ensure better IEQ and attain liveability. This book chapter presents a review on the impacts of COVID-19 on buildings in terms of IEQ and liveability in the age of COVID-19. It also highlights benefits of IEQ in providing healthy buildings including thermal comfort, natural ventilation, and daylighting and sunlight. This chapter addresses the benchmark for IEQ in the time of COVID-19. Additionally, global examples of best practices are highlighted to deduce the best lessons, standards, and practice models. This chapter also depicts selected contemporary buildings vs. traditional ones that include the main features to attain IEQ and draw the lessons learned from such traditional buildings. The chapter seeks to answer a main question – Can IEQ achieve liveability in the age of COVID-19? – and presents a comparative analysis of assessed buildings (case studies).

Urban air pollution caused by transport, traffic congestion, and high energy use is considered one of the major challenges in megacities. This paper presents a study on the effect of using nanocoating on the buildings’ facades to improve air quality in cities. It also highlights the types and uses of nanocoating in various countries through a comparative analysis of global case studies. The objective of this work focuses on titanium dioxide as a self-cleaning photo-catalytic to mitigate pollution and improve indoor air quality. The methodology depends on inductive and analytical approaches: the first part includes a review on the nanotechnology and nanocoating, whereas the analytical part encompasses an assessment of global models for nanotechnology. The study analysed different buildings around the world that applied different types of Nanocoatings. The review of these buildings were divided according to their types of nanocoating, the country where most common types of buildings used and the country that has similar matching to Egypt’s climatic conditions. By analysing each building facades, it was helpful to extract the nanotechnologies, especially self-cleaning (photo-catalytic) that mitigate air pollution. In addition, assessments of the percentage of pollutants worldwide to identify the most important pollutants that are classified as top contaminants threatening human health, if the concentration in the internal spaces exceeds the limits recommended globally were highlighted. Finally, a review of the report of Ministry Environment, Egypt, and the maximum limits of pollutants at the global scale was also conducted, which led to the extraction of requirements to reduce contaminants in the internal spaces of buildings using titanium dioxide as self-cleaning (photo-catalytic). Results show the potential of titanium dioxide as a self-cleaning (photo-catalytic) to mitigate the level of pollution to enhance livability in cities.