Practice question
Under Principle15, lack of full scientific certainty must not be used as a reason to postpone what?
- Every conceivable measure regardless of cost or purpose.
- Only punishment after every appeal.
- All development permanently.
- Only diplomatic speeches.
- Cost-effective measures to prevent environmental degradation where the stated threat exists.
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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