Many low-lying coastal, river-delta mega-cities, already stressed by rapid population growth and economic, social, health and cultural difficulties, are now increasingly vulnerable due to climate change. aLOUDBangkok is the platform for sharing knowledge base and when necessary cope with risks posed by the effects of climate change in Bangkok under the research project called Coastal Cities at Risk (CCaR): Building Adaptive Capacity for Managing Climate Change in Coastal Megacities. The overall objective of the program is to develop the knowledge base and enhance the capacity of mega-cities to successfully adapt to and when necessary cope with risks posed by the effects of climate change, including sea level rise, in the context of urban growth and development.