The UN Department of Economic and Social Affairs (DESA) has released a report that traces the evolution of sustainable development within the UN system over the course of eight decades. It highlights the UN’s role in shaping the understanding and practical application of sustainable development and identifies lessons for the future.

The report titled, ‘Advancing Together: Eight Decades of Progress Towards Sustainable Development for All,’ outlines the UN’s approach to development, which, it notes, has evolved from focusing on economic, social, and environmental issues separately to “recognizing these as deeply interconnected dimensions of a single challenge,” which ultimately converged as indivisible in the 2030 Agenda for Sustainable Development and its 17 SDGs.

Highlighting collaboration as “the engine of progress,” the report lauds the international community’s “remarkable resilience” in the face of rising geopolitical tensions, persistent financing gaps, digital divides, and the COVID-19 pandemic, all of which put solidarity to the test. Among recent successes, it notes the Fourth International Conference on Small Island Developing States (SIDS4), the Third UN Ocean Conference (UNOC3), the Fourth International Conference on Financing for Development (FfD4), the Third UN Conference on Landlocked Developing Countries (LLDCs), and the World Health Organization (WHO) Pandemic Agreement.

Based on eight decades of multilateral collaboration, the report identifies five “critical” lessons:

• Collective action is crucial to addressing interconnected global challenges that transcend national borders.
• Inclusive multilateralism remains indispensable, though it must continuously adapt to remain effective and legitimate.
• Norms and frameworks catalyze change by providing benchmarks for national action and empowering advocacy for progress.
• Foresight, adaptation, and innovation are vital for institutional impact in a rapidly changing world.
• Intergenerational equity is essential, requiring decisions today that secure opportunities for future generations.

Warning against “retreat into fragmentation,” the report underscores the value of multilateral cooperation and investment in sustainable development and calls for genuine solidarity and cooperation. It argues that despite “inherent complexities,” multilateral action through the UN can produce transformative results, make lives better, and expand opportunities for all.

To achieve the 2030 Agenda while tackling global challenges, the report emphasizes the need to strengthen international cooperation mechanisms, ensure predictable financing, invest in robust analytical capacity, and foster political conditions for effective collective action. It underscores the importance of building “strong, accountable, and adaptive institutions capable of translating global commitments into concrete national and local actions.” “The UN must continue to adapt and reform if we are to realize a sustainable, equitable, and resilient future,” it urges, drawing attention to the UN Secretary-General’s UN80 Initiative, aimed at accelerating UN reform.

The report was published in October 2025. [Publication: Advancing Together: Eight Decades of Progress Towards Sustainable Development for All] [Publication Landing Page]