Deglobalisation? The case for diversified and decentralised global sustainability science [Commentary]

As international cooperation on science and sustainability becomes
increasingly fragile, sustainability science must evolve to remain effective
in a deglobalising world. The traditional, centralised, top-down model of
sustainability is proving too vulnerable to current global disruptions, from
pandemics to geopolitical conflicts. These challenges threaten progress
toward the Sustainable Development Goals and jeopardise decades of
collaborative advancement. This commentary argues for a fundamental
shift toward a decentralised, community-empowered model of
sustainability science. By prioritising local solutions, embracing diverse
knowledge systems, and fostering horizontal knowledge exchange, we
can create a more resilient and adaptable framework for sustainable
development. Key transitions include elevating successful local initiatives,
adopting transdisciplinary approaches that include underrepresented
knowledge holders, building decentralised knowledge-sharing networks,
and recognising that sustainability has different meanings across cultural
and geographical contexts. These changes will not only mitigate the
fragility of globalised systems but also ensure sustainability efforts are
more inclusive, context-sensitive, and grounded in real-world needs.
Ultimately, this commentary reimagines sustainability science as a
bottom-up endeavour, one that is robust, equitable, and capable of
thriving even in an increasingly fragmented global landscape.