Gabriel Y V Yong is a lecturer in the Geography, Environment and Development Programme at University of Brunei Darussalam (UBD). He has been studying Brunei’s environment for 3 decades and served as resource person, drafting reports for the Brunei government in ASEAN projects on skills training for disadvantage women (2000), coastal resources and environment (1998, 2005), Health Impact Assessment (2012), environment-friendly maritime transport (2012-2015) and human rights in Environmental Impact Assessment (2017-2019). He is the lead author of the first and only State of the Environment report (2006) for Brunei. His specialisation is in complex systems modelling of human-environment inter-relationships. Current research covers historical geography reconstruction, Blue Urbanism, Climate Change, Biomimicry and Arcology.AKM Ahsan Ullah is associate professor of Geography, Environment and Development at the University of Brunei Darussalam (UBD). He has an extensive research portfolio and has worked with prestigious institutions such as the City University of Hong Kong, IPH at the University of Ottawa, McMaster University, Saint Mary's University, Dalhousie University in Canada, the American University in Cairo (AUC), Osnabruck University, Germany, and the Asian Institute of Technology (AIT), Thailand. His research areas include migration and mobilities, intercultural encounters and development, with a geographic focus on the Asia-Pacific, Africa, and Middle East, and theoretical focus on globalization and neoliberalism, development and human rights, transnationalism, gender, intersectionality and the everyday life.

• Chapter 1.- Introduction: Southeast Asia from a Brunei Perspective.- Chapter 2 Changing Realities, 2025.- Chapter 3 Climate Change and Sea Level Rise in Southeast Asia: Current Knowledge and Future Projections.- Chapter 4 Changing Global Order and Climate: A Comparative Analysis of Cartesian and Organismic Perspectives.- Chapter 5 Food Security: A Closer Look Using Brunei Darussalam as Case Study.- Chapter 6 ASEAN’s halal production networks: Towards regional integration and effective industrial governing, a Brunei case study.- Chapter 7 Young Consumers Jumping on the Bandwagon of Sustainability.

Gabriel Y V Yong is a lecturer in the Geography, Environment and Development Programme at University of Brunei Darussalam (UBD). He has been studying Brunei’s environment for 3 decades and served as resource person, drafting reports for the Brunei government in ASEAN projects on skills training for disadvantage women (2000), coastal resources and environment (1998, 2005), Health Impact Assessment (2012), environment-friendly maritime transport (2012-2015) and human rights in Environmental Impact Assessment (2017-2019). He is the lead author of the first and only State of the Environment report (2006) for Brunei. His specialisation is in complex systems modelling of human-environment inter-relationships. Current research covers historical geography reconstruction, Blue Urbanism, Climate Change, Biomimicry and Arcology.AKM Ahsan Ullah is associate professor of Geography, Environment and Development at the University of Brunei Darussalam (UBD). He has an extensive research portfolio and has worked with prestigious institutions such as the City University of Hong Kong, IPH at the University of Ottawa, McMaster University, Saint Mary's University, Dalhousie University in Canada, the American University in Cairo (AUC), Osnabruck University, Germany, and the Asian Institute of Technology (AIT), Thailand. His research areas include migration and mobilities, intercultural encounters and development, with a geographic focus on the Asia-Pacific, Africa, and Middle East, and theoretical focus on globalization and neoliberalism, development and human rights, transnationalism, gender, intersectionality and the everyday life.

• Chapter 1.- Introduction: Southeast Asia from a Brunei Perspective.- Chapter 2 Changing Realities, 2025.- Chapter 3 Climate Change and Sea Level Rise in Southeast Asia: Current Knowledge and Future Projections.- Chapter 4 Changing Global Order and Climate: A Comparative Analysis of Cartesian and Organismic Perspectives.- Chapter 5 Food Security: A Closer Look Using Brunei Darussalam as Case Study.- Chapter 6 ASEAN’s halal production networks: Towards regional integration and effective industrial governing, a Brunei case study.- Chapter 7 Young Consumers Jumping on the Bandwagon of Sustainability.