Syrian refugees warm themselves around a fire in Hacibayram district of Ankara November 21, 2014. Syrian refugees across the Middle East, some in exile for a fourth winter, face freezing temperatures, hunger and increasing hostility from locals as governments struggle to cope with the humanitarian crisis. Lebanon and Jordan are tightening their borders to stem the flow of those trying to escape whilst in Turkey, widely praised for hosting around half Syria's estimated 3.2 million refugees, the influx threatens to upset the country's delicate social balance. Picture taken November 21, 2014. REUTERS/Umit Bektas (TURKEY - Tags: POLITICS SOCIETY IMMIGRATION CIVIL UNREST)