Voor het evenwicht tussen de staatsmachten, maar ook voor de ontwikkeling van internationaal recht, is de wijze waarop de nationale rechter zijn rol vervult van belang: gedraagt hij zich als rechtsvormer of als een rechtshandhaver? Zowel de legitimatie en vorming van het internationale recht als de handhaving van de internationale verplichtingen van de Staat op nationaal niveau zijn hiervan afhankelijk. Deze belangen worden bezien vanuit internationaal perspectief en uiteengezet aan de hand van recente jurisprudentie.

Few legal theorists today would argue that the domain of law exists in isolation from other normative spheres governing society, notably from the domain of ‘politics’. Nevertheless, the implicit norm that judges should not act ‘politically’ remains influential and widespread in the debates surrounding controversial court cases. This article aims to square these two observations. Taking the Miller v. Secretary of State and Urgenda cases as illustrative case studies, the article demonstrates that what it means for judges to adjudicate cases ‘apolitically’ is itself a matter of controversy. In reflecting on their own constitutional role, courts are forced to take a stance on substantive questions of political philosophy. Nevertheless, that does not mean that the ‘norm of judicial apoliticality’ should therefore be rejected. The norm’s coherence lies in its intersocial function: its role in declaring certain modes of judicial interpretation and intervention legitimate (‘legal’/‘judicial’) or illegitimate (‘political’).

Ever since it was published in 2015, the judgment of the The Hague court in the so-called Urgenda-case, and the subsequent decisions of the appellate and cassation courts confirming it, have been met with repeated and vivid critiques. By recognizing the necessity of the reduction in greenhouse gas emissions, and furthermore imposing a certain reduction level on the Dutch state, the judgments in the cases at hand gave rise to many questions concerning the position of the judiciary in the matter, and in Dutch society as a whole. This article attempts in the first place to situate the positions of the different actors intervening in the Urgenda-case within a legal-theoretical framework. The contribution subsequently explores the strategic possibilities that an alternative understanding of law could offer to the judges, focusing specifically on the use of legal instruments stemming from international law, brought into the reasoning of the national judge.