This presentation explores the environmental and social impacts of algal supply chains, drawing insights from EU projects like InteSusAI (fermentation systems), MAGNIFICENT (high-value products), AlgaCycle and REALM (biostimulants and biofertilizers), and MicroBoost (aquafeeds). It highlights the innovation in microalgae projects, stressing the need for formalized life cycle assessments (LCA), skepticism of existing data, and careful consideration of large impacts like energy, using specialized software over standard electricity models.