Non-economic cost: it damages biodiversity as it can ruin habitats and hunting grounds. Benefit: we get more oil, which we need if we're going to keep using the amount that we do. I'm not sure about an economic cost, sorry!
Drilling for oil in Antarctica has several costs and benefits. An economic cost includes potential cleanup expenses after an oil spill, while a non-economic cost involves damage to biodiversity. The benefit of drilling is the increased oil supply to meet global demand.
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