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Pastoralism is one of the region's lifestyles that have been hit hard by changes linked to the climate

UNOCI peacekeepers on patrol

UNAMID peacekeepers patrol in North Darfur

Women and children fleeing past unrest in Plateau State, Nigeria

As GOP leaders in Congress consider whether to ban earmarks, there are some willing to speak up for the practice. In Florida, they include environmentalists concerned about finding money for Everglades restoration and local officials with big projects to fund, such as the dredging of Miami’s port.

Soldiers from the Alabama National Guard build and maintain miles of HESCO barriers to protect Dauphin Island, Ala., beaches from the BP oil spill on July 23, 2010. More than 1,600 National Guardmembers supported Operation Deepwater Horizon in four Gulf states.

Voting at a Baghdad polling station in Iraq's parliamentary elections on 7 March 2010

Swedish police officers patrol a street in central Stockholm, near where a suicide bomber killed himself two days earlier, on Dec. 11, 2010

This past fall, al-Qaida's arm in Yemen tried its hand at a new kind of attack: cargo bombs.