One guidance is that “ abstract calculations of damage or claims concerning unquantifiable elements of damage to the environment will be inadmissible.” See Edward Brans, “Liability and Compensation for Natural Resource Damage under the International Oil Pollution Conventions”, 5 RECIEL (1996) 297, at p. 301.
Voir Edward Brans, « Liability and Compensation for Natural Resource Damage under the International Oil Pollution Conventions » (Responsabilité et réparation des dommages causés aux ressources naturelles conformément aux conventions internationales concernant la pollution par les hydrocarbures), 5 RECIEL (1996) 297, p. 301.