Humanity faces the challenge of identifying ways how to adapt and mitigate the effects of global climate change. A thorough analysis of all the adaptive capabilities and institutions involved in this process is required to meet this challenge. Climate change mitigation and adaptation is a cross-border, multi-level, multi-sectoral and multi-activity challenge with long-range, specific ... [Show full abstract] characteristics and many uncertainty parameters. Therefore, many different actors from different sectors are involved in regulating this process with their strategies and interests. There are several key players who play a special role. These include civil society institutions. The authors analyzed Ukrainian and international practices of civil society involvement in addressing global climate challenges.