Risks related to sea level rise and river floods generated by climate change will threaten a larger number of human and ecological assets in coastal areas. To cope with and protect communities and natural ecosystems, various adaptive technologies are employed, which focus on the sustainable use of natural resources. However, are adaptive green technologies effective, exportable, and affordable in mitigating coastal risks and reducing greenhouse gas emissions (GHGs)? This paper briefly describes the coastal protection schemes, their impact on the ecosystem and prevention, and identifies the benefits of low-carbon green initiatives. The research methodology involves a web-based study of government-led green adaptation technologies. The primary audience for this study is local governments and communities in developing countries considering adaptive green solutions. The case studies of green adaptation technologies suggest that adaptive technologies are generally not involved in urban planning strategies, especially in developing countries, indicating the difficulty of tracking the impact of urban adaptation.