Practice question
Which Rio principle expressly states the precautionary approach?
- Principle2.
- Principle4.
- Principle15.
- Principle16.
- Principle24.
Legal references
- Rio Declaration (1992), Principles1,3–5 and15: https://www.cbd.int/doc/ref/rio-declaration.shtml
- ICJ, Obligations of States in respect of Climate Change, Advisory Opinion, July23 2025, main opinion, paragraphs158 and293–294: https://icj-web.leman.un-icc.cloud/sites/default/files/case-related/187/187-20250723-adv-01-00-en.pdf
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