Off-shore mining poses serious environmental hazards that are not always visible to the naked eye. For instance, drilling can cause ocean currents to change, altering the marine environment, and affecting temperatures worldwide. 10 7 It can also destroy marine habitats and their biological communities in the vicinity of hydrothermal vents.'0 8 More obviously, oil exploration, especially in the harsh conditions of the Arctic, risks oil spills into the Arctic waters. BP Exploration (Alaska), for instance, is on average responsible for an oil spill every day in its Prudhoe Bay operation.109 These spills have the effect of depleting the popula- tions of Arctic wildlife, including game animals hunted for food by indigenous Arctic peoples."110