A mortar shell is fired towards forces loyal to the Syrian regime in town of Morek in Hama province
A mortar shell is fired towards forces loyal to the Syrian regime in town of Morek in Hama province, a town on the highway that runs from Hama to Aleppo March 6, 2014. Picture taken March 6, 2014. REUTERS/Ahmad Rif (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Free Syrian Army fighters walk together in town of Morek in Hama province, a town on the highway that runs from Hama to Aleppo
Free Syrian Army fighters walk together in town of Morek in Hama province, a town on the highway that runs from Hama to Aleppo March 6, 2014. Picture taken March 6, 2014. REUTERS/Ahmad Rif (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A man operates an excavator at a site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President al-Assad in Aleppo's district of al-Sukari
A man operates an excavator at a site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's district of al-Sukari March 7, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A father reacts as he mourns the death of his four children who died in what activists were barrel bombs dropped by forces loyal to Syria's President al-Assad in Aleppo's district of al-Sukari
A man reacts as he mourns the death of his four children who died in what activists were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's district of al-Sukari March 7, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Men operate an excavator amid debris from the site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President al-Assad in Aleppo's district of al-Sukari
Men operate an excavator amid debris from the site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's district of al-Sukari March 7, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Army fighter fires his weapon in town of Morek in Hama province
A Free Syrian Army fighter fires his weapon in town of Morek in Hama province, a town on the highway that runs from Hama to Aleppo March 6, 2014. Picture taken March 6, 2014. REUTERS/Ahmad Rif (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A man is comforted as he mourns the death of his four children who died after what activists were barrel bombs dropped by forces loyal to Syria's President al-Assad in Aleppo's district of al-Sukari
A man is comforted as he mourns the death of his four children who died after what activists were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's district of al-Sukari March 7, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Men search for casualties amid rubbles at a site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President al-Assad in Aleppo's district of al-Sukari
Men search for casualties amid rubbles at a site hit by what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's district of al-Sukari March 7, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A boy shepherds camels near Al Karamah Dam in Shouneh
A boy shepherds camels near Al Karamah Dam in Shouneh March 7, 2014. The Middle East's driest winter in several decades could pose a threat to global food prices, with local crops depleted and farmers' livelihoods blighted, U.N. experts and climatologists say. Varying degrees of drought are hitting almost two thirds of the limited arable land across Syria, Lebanon, Jordan, the Palestinian territories and Iraq. To match analysis CLIMATE-DROUGHT/MIDDLEAST. REUTERS/Muhammad Hamed (JORDAN - Tags: ENVIRONMENT AGRICULTURE BUSINESS)