By Xuan Ni, Intern, Earth Charter International
As the 81st session of the United Nations General Assembly opens this week, on 8 September 2026, world leaders will once again gather in New York at a time of profound global uncertainty. The theme of this year’s session, “Restoring Trust, Managing Transformation: A United Nations That Delivers for All”, reflects two central challenges facing the multilateral system today: declining trust in international institutions and the need to respond collectively to rapidly changing global conditions.
For many observers, the question is no longer whether the UN is imperfect, but whether it remains relevant at all in a world of shifting alliances, resurgent nationalism, and geopolitical fragmentation.
A multilateral system under pressure
The United Nations has faced growing criticism in recent years. The organization is often portrayed as slow, bureaucratic, or unable to respond effectively to major international crises. The limitations of the Security Council, particularly when geopolitical divisions prevent collective action, have further contributed to questions about the effectiveness of the international system.
There are also broader concerns about the structure of global governance. Institutions created in the aftermath of the Second World War operate in a world that has changed significantly in terms of economic power, technology, demographics, and global challenges. At the same time, growing geopolitical competition and a renewed emphasis on national sovereignty have made international consensus more difficult to achieve.
These criticisms should not simply be dismissed. International institutions need to be accountable and capable of adapting to changing circumstances. The question, however, is whether the shortcomings of multilateral institutions mean that multilateralism itself has become less relevant.
Why cooperation remains necessary
The challenges facing societies today increasingly cross-national borders. Climate change, biodiversity loss, pandemics, migration, poverty, technological transformation, and armed conflict cannot be addressed effectively by countries acting entirely on their own.
The 81st session of the General Assembly illustrates this interdependence. Its high-level programme includes discussions on sustainable development, climate action and a just transition, sea-level rise, pandemic preparedness, development, racial discrimination, and nuclear disarmament. The annual General Debate will bring together world leaders from 22 to 28 September to discuss these and other interconnected challenges.
Solving these problems, however, does not lie within the UN’s power alone. Most of its decisions depend on the willingness and capacity of Member States to implement them. Its importance therefore should not be measured only by whether it can produce immediate solutions.
The UN also provides something more fundamental: a space in which states can negotiate, establish common norms, coordinate action, and articulate shared priorities.
The General Assembly, for example, brings together all 193 Member States, each with one vote. Although General Assembly resolutions are generally not legally binding, the Assembly remains the UN’s most representative forum for international deliberation on issues including peace and security, development, human rights, and international law.
In this sense, multilateralism is not necessarily about achieving consensus on every issue. It is also about maintaining the institutional possibility of dialogue when consensus is difficult.
Restoring trust, rather than abandoning cooperation
This makes the theme of UNGA 81 particularly significant.
“Restoring trust” acknowledges that international cooperation cannot function without a degree of confidence in institutions, processes, and one another. Trust does not mean the absence of disagreement. Rather, it requires institutions that are sufficiently inclusive, transparent, accountable, and representative to allow disagreement to be managed through dialogue rather than confrontation.
The challenge for the United Nations is therefore twofold. It must respond to legitimate criticism and improve its effectiveness, while also demonstrating why international cooperation remains indispensable.
The question facing the UN is consequently not whether it should remain unchanged. It is whether it can adapt fast while preserving the principles of international cooperation on which the multilateral system was built.
A perspective from the Earth Charter
This question also resonates with the ethical perspective of the Earth Charter.
The Earth Charter begins with the recognition that humanity lives within an interconnected global community. The Preamble describes a world that is “increasingly interdependent and fragile” and calls on humanity to recognize that “we are one human family and one Earth community with a common destiny.”
The Charter’s principle of universal responsibility develops this idea further, emphasizing that “the local and global are linked” and that responsibility extends to the well-being of both present and future generations.
From this perspective, international cooperation is not only an institutional or political question. It is also a response to the reality of interdependence. This is reflected particularly clearly in Principle 16 of the Earth Charter, which calls to “Promote a culture of tolerance, nonviolence, and peace” and encourages “solidarity, and cooperation among all peoples and within and among nations.”
The Earth Charter therefore offers a useful ethical lens through which to consider the future of multilateralism: if global challenges are interconnected, responsibilities cannot stop at national borders.
Looking ahead
The United Nations is neither a perfect institution nor a substitute for political will. Its effectiveness ultimately depends on the willingness of governments and societies to cooperate with a shared vision and decision to act. Yet the absence of a perfect institution does not eliminate the need for collective action.
As UNGA 81 begins, perhaps the more useful question is therefore not whether the United Nations is still relevant, but what kind of multilateralism the world needs now.
A more effective multilateral system may require greater accountability, broader participation, and renewed public trust. But it will also require recognition of a basic reality: many of the challenges that shape our shared future cannot be managed by any country alone. In an increasingly interconnected world, cooperation is not a sign that differences have disappeared. It is a way of responding to them.
And perhaps this is where the United Nations and the Earth Charter meet: in the recognition that our shared challenges require not uniformity, but a capacity to live, deliberate, and act together.
