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Abstract
This article critically examines the limitations of Public International Law (PIL) when confronted with the existential challenges of the twenty-first century. It argues that PIL, as currently structured, is unable to provide effective responses to global threats such as climate change, nuclear proliferation, artificial intelligence, and disruptive biotechnologies. The analysis highlights two central weaknesses: the absence of coercive mechanisms capable of restraining hegemonic powers, and the persistence of an institutional architecture shaped by geopolitical interests, which excludes non-state actors and affected communities from meaningful participation. Against this background, the article raises a central question: can PIL, in its current form, guarantee minimum standards of global justice? The conclusion reached is negative. Far from constituting a functional legal order, PIL operates as a fragile and selective regime. To address these
deficiencies, the article calls for its reconfiguration around emerging normative frameworks—including intersystemic constitutionalism, constitutional pluralism, and legal decolonization—that could enable the creation of a binding, democratic, and inclusive system of global governance, better equipped to confront the complex risks of our time.
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