A boy drinks water from a pond in Bule Duba village in the outskirts of Moyale, near the edge of Oroma and Somali regions of Ethiopia, June 12, 2009. Prolonged drought, lack of water and limited pasture have led to conflict between the Somali and Borena ethnic groups in southern Ethiopia which left hundreds of people dead in February this year. The International Federation of Red Cross and Red Crescent Societies (IFRC) says it needs some 100 million Swiss francs to prevent conflict, famine and epidemics as well as restore the livelihoods of 2.5 million people in the Horn of Africa. Picture taken June 12, 2009. REUTERS/Irada Humbatova (ETHIOPIA SOCIETY CONFLICT HEALTH IMAGES OF THE DAY) BEST QUALITY AVAILABLE

A boy drinks water from a pond in Bule Duba village in the outskirts of Moyale, near the edge of Oroma and Somali regions of Ethiopia, June 12, 2009. Prolonged drought, lack of water and limited pasture have led to conflict between the Somali and Borena ethnic groups in southern Ethiopia ? that left hundreds of people dead in February this year. The International Federation of Red Cross and Red Crescent Societies (IFRC) says it needs some 100 million Swiss francs to prevent conflict, famine and epidemics as well as restore the livelihoods of 2.5 million people in the Horn of Africa. Picture taken June 12, 2009. REUTERS/Irada Humbatova (ETHIOPIA SOCIETY CONFLICT HEALTH IMAGES OF THE DAY)

Densa Tadicha, 10, collects water from a pond used by animals at El-Ley village in the drought affected region of Moyale June 12, 2009. The consumption of contaminated water from shallow wells and ponds meant for cattle, poor nutrition and unsafe hygiene practices have led to an outbreak of cholera and acute watery diarrhoea (AWD) which has left 25 people dead and 1,300 needing emergency medical care in the Moyale region of Ethiopia and Kenya, home to some half a million people. The International Federation of Red Cross and Red Crescent Societies (IFRC) says it needs some 100 million Swiss francs to prevent conflict, famine and epidemics as well as restore the livelihoods of 2.5 million people in the Horn of Africa. Picture taken June 12, 2009. REUTERS/Irada Humbatova (ETHIOPIA SOCIETY CONFLICT IMAGES OF THE DAY HEALTH)

A man looks at a flooded house along the River Tana, at Webi Village, in Kenya's North eastern district town of Garissa, 390km (242 miles) from Nairobi, November 22,2006. The U.N. says some 1.8 million people have been affected by torrential rains that have pounded the Horn of Africa this month, forcing tens of thousands from their homes in parts of Kenya, Somalia, Ethiopia, Sudan and Eritrea. Aid workers fear epidemics linked to polluted stagnant water, including cholera, malaria and dysentery, could break out. REUTERS/Daud Yussuf (KENYA)

Bulle Hussein, 34, father of six, whose family is displaced from Kamor Village, fetches water from a tank provided by the Redcross Society at an IDP camp in Garissa, 390km (242 miles) north-east of Nairobi, November 22, 2006. The U.N. says some 1.8 million people have been affected by torrential rains that have pounded the Horn of Africa this month, forcing tens of thousands from their homes in parts of Kenya, Somalia, Ethiopia, Sudan and Eritrea. Aid workers fear epidemics linked to polluted stagnant water, including cholera, malaria and dysentery, could break out. REUTERS/Daud Yussuf (KENYA)

Ahmed Mohammed Abdella, a student from Ethiopia, wears a face mask and performs Friday prayers at the National Mosque in Kuala Lumpur August 12, 2005. Malaysians prayed for rain on Friday and a quick end to the country's worst pollution crisis in eight years as residents choked on acrid forest-fire smoke blowing in from neighbouring Indonesia. As the call to prayers echoed from mosques around the mainly Muslim country, the premier called for Muslims, Christians, Buddhists and Hindus to seek divine intervention to wash the skies of a week-long haze that has threatened public health. REUTERS/Kamarulzaman Russali KR/DY