Practice question
A legislature creates a lawful sector-specific pollution-cost regime. A critic says the 2025 opinion prohibited it because polluter pays was not applicable in that advisory proceeding. Which is best?
- Every national pollution regime was automatically annulled
- Only the ICJ may ever regulate private pollution
- The recommendation can never inform legislation
- A national legislature must ignore all environmental costs
- The opinion did not invalidate all such specific national regimes
Legal references
- ICJ, Obligations of States in respect of Climate Change, July 23, 2025, main advisory opinion: https://icj-web.leman.un-icc.cloud/sites/default/files/case-related/187/187-20250723-adv-01-00-en.pdf; paragraphs 159-160.
- Rio Declaration: https://www.cbd.int/doc/ref/rio-declaration.shtml; Principle 16.
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