General response to climate change requires a dual approach : management and reduction of greenhouse gas emissions(mitigation) and making adjustments to existing activities and practices for reducing potential impacts of climate change(adaptation). The primary objective of this study is to identify climate change vulnerability and climate impact risk factors as currently predicted that are applicable to prepare adaptation actions in city gas supply industry in Korea. Two factors including outdoor temperature changes and severe rainfall with typhoon are predicted as most critical issue. Impacts and reponses from these factors are briefly discussed.