Environment

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Bosnian worker prepares to take away dead cows from a farm near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. .(AP Photo/Amel Emric)

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Bosnian worker prepares to take away dead cows from a farm near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. .(AP Photo/Amel Emric)

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A dead cow is towed away to taken by the Bosnian military from a farm near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands: tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. (AP Photo/Amel Emric)

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Dead cows wait to taken away by the Bosnian military from a farm near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands: tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. (AP Photo/Amel Emric)

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A dead pig lies at the side of the road near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands: tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. (AP Photo/Amel Emric)

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Bosnian man shows a dead livestock near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands: tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. (AP Photo/Amel Emric)

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Dead cows wait to taken away by the Bosnian military from a farm near the Bosnian town of Bosanski Samac along river Sava, 200 kms north of Bosnian capital of Sarajevo, on Tuesday, May 20, 2014. A new calamity emerged Tuesday in the flood-hit Balkans even as emergency workers battled overflowing rivers and evacuated thousands: tons of drowned livestock were posing a health hazard. With the rainfall stopping and temperatures rising, the withdrawing floodwaters revealed a harrowing sight: thousands of dead cows, pigs, sheep, dogs and other animals that were left behind after their panicked owners fled rapidly advancing torrents. (AP Photo/Amel Emric)

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In this photo taken on Monday, May 19, 2014, Rev. Michael Meyer, center, manager of Disaster Response from The Lutheran Church, prays among town members during a community meeting to discuss any questions or concerns that residents have a week after a tornado hit Beaver Crossingm Neb. The National Weather Service said the May 11 tornado that struck Beaver Crossing packed winds peaking at 140 mph. (AP Photo/The Journal-Star, Lauren Justice) LOCAL TV OUT; KOLN-TV OUT; KGIN-TV OUT; KLKN-TV OUT