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Benjamin Lowy
USA, Reportage by Getty Images for GQ
1st Prize Nature Stories

In April, the Deepwater Horizon oil-drilling rig, in the Gulf of Mexico off the Louisiana coast, sunk after an explosion. Over the next four months, the resultant sea-floor oil gusher released an estimated 4.9 million barrels (nearly 780 million liters) of crude oil, making it the biggest marine oil spill in history and causing extensive damage to marine and wildlife habitats, as well as to tourism and fishing industries in the Gulf. The rig, operated by Transocean under contract for BP, was drilling in about 1,525 meters of water, pushing the boundaries of deepwater drilling. President Barack Obama placed an immediate moratorium on new drilling off the US coast.
Pools of crude oil float to the surface of the Gulf of Mexico, in June.
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