Booms and sand barriers are prepared as defenses against the oil from the Deepwater Horizon wellhead that is washing up on the beaches along Grand Isle, Louisiana.

We'd like to believe the polar bear on this photo, taken in August 2009, is just as happy today as news came in that drilling at BP's Liberty project in the Arctic has been delayed.

Hundreds of tar balls from the Deepwater Horizon wellhead wash up on the beaches along Grand Isle State Park on Grand Island, Louisiana.

14 July 2010- Call for Offshore Drilling Moratorium in EU. Oil-smudged Greenpeace activists await the arrival of 18 CEOs from some of the world’s biggest oil companies to a meeting with EU energy commissioner Günther Oettinger and environment...

17 June - Gulf of Mexico. Ships surround a controlled burn of oil on the surface of the Gulf of Mexico near BP's Deepwater Horizon spill source. See more of the damage .

ExxonMobil Chairman and Chief Executive Rex Tillerson, left, gestures while testifying before a House Subcommittee on Energy and Environment hearing. Pictured from left are: Rex Tillerson, Chairman and Chief Executive Officer, ExxonMobil; John...

A ship drops line of booms in an effort to protect the beach from oil in Orange Beach, Alabama. Oil from the Deepwater Horizon wellhead in the Gulf of Mexico has started reaching the beaches in Alabama, Mississippi and Florida.

14 July 2010- Call for Offshore Drilling Moratorium in EU. Oil-smudged Greenpeace activists await the arrival of 18 CEOs from some of the world’s biggest oil companies to a meeting with EU energy commissioner Günther Oettinger and environment...