The race for profit is widening social inequalities and destroying the planet. As the productivist catastrophe is worsening day by day, democratic and revolutionary socialism must be rethought to meet needs within ecological limits. This Manifesto adopted in February 2025 by the Fourth International raises the banner of a civilisational alternative: ecosocialism. It proposes a programme of transitional demands for different situations and a strategy for the convergence of struggles against all exploitation, oppression and dispossession