The transition towards a climate-neutral and circular economy is one of the most important objectives of both national development policy and the European Union, providing opportunities and challenges for combating climate change and environmental degradation. The objective of the Action is to strengthen investment projects, which will be implemented in the areas of the Territorial Just Transition Plans (TJTPs) of Western Macedonia and Megalopolis, in order to address the social, employment, economic and environmental impacts of delignitization and to support their transition to a climate-neutral economy and a balanced and sustainable development.