At 8:20 p.m. on the day of the explosion the pressure data suggest there was a constant flow of sea water being pumped into the drill pipe that was displacing the heavier mud system which was the primary pressure control for the well.

WSJ: The Oil Disaster Is About Human, Not System, Failure

Photographer Neil A White's Lost Villages project documents this constant battle between the North Sea and the land in this part of the British Isles, one that endures the highest rate of coastal erosion in Europe.

BBC: Lost villages

Great white sharks are attracted to the warm ocean currents along Australia's southern coastline and are a constant concern for divers who work in the sea.

CNN: Divers embrace anti-shark device

The sea flooded in, bringing a ship that could take Bip on his constant travels to America, to Japan and to Australia, and he staggered manfully up and down the pitching deck.

ECONOMIST: Bip