The global dialogue on sustainable practices in the shipping industry is gaining unprecedented momentum as new environmental strategies reshape maritime regulations. Recent developments signal that the United States has withdrawn from discussions held in London focused on accelerating the decarbonization of marine transport—a move that could have far-reaching implications. Washington is now considering “reciprocal measures” to counterbalance any fees imposed on American vessels. This decision not only underscores the evolving relationship between eco-regulatory bodies and national interests but also reflects broader trends in global environmental policy.