ICJ determines first ever compensation claim for environmental harm

On 2 February 2018, the International Court of Justice (the “ICJ” or the “Court”) delivered judgment in the case concerning Certain Activities Carried Out by Nicaragua in the Border Area (Costa Rica v Nicaragua), determining the amount of compensation due to Costa Rica for environmental harm caused by Nicaragua’s activities in the northern part of Isla Portillos. This judgment, along with the related judgment delivered the same day in the joined cases concerning Maritime Delimitation in the Caribbean Sea and the Pacific Ocean and Land Boundary in the Northern Part of Isla Portillos (Costa Rica v Nicaragua) aims to bring to a conclusion the boundary dispute between the two neighbouring states stretching back to the 1850s.

The judgment is particularly noteworthy as it is the first time the Court has determined a damages claim for environmental harm. While the award fell short of the amount claimed by Costa Rica, both states have hailed the judgment as an important step in the normalisation of the relations between the two states.

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