Islands share similar needs, in terms of energy supplies, climate change impacts and accessibility. On the other hand, island status can be an opportunity to pursue innovative strategies on renewable energy, energy efficiency, sustainable mobility, the circular economy, protected areas, etc. In this regard, the poster networking session aims to exchange best practices among islands, share the lessons learned and connect actors. Balearic Islands, Corsica, Crete and Sardinia will present, through posters, some best practices related to green economy that contribute to compensate for islands weaknesses. The event will provide the opportunity to gather further initiatives form other EU islands on these themes.