Inmates shovel around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012 as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Members of "Transylvania Rescue Team" from Romania and Hungary pose on a pile of snow near Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Europe. The rescue team had several interventions in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Inmates shovel around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A prison guard watches inmates that shovel around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A prison guard takes pictures of inmates that shovel around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

An elderly man prepares to exit through a window in a tunnel under his snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012 as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

An elderly man exits through a window in a tunnel under his snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

An inmate shovels around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A prison guard gestures to inmates that shovel around a snow covered house in Scutelnici village, 90 km northeast of Bucharest, February 17, 2012, as icy weather continues across Romania. Inmates from Jilava prison helped to clear the houses in the snow covered area of Buzau in southeast Romania. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Snow-covered cars are seen after heavy snowfall in Bucharest February 14, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Ialomita, Giurgiu and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather, according to local media. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Snow-covered display boards showing currency exchange offices are seen after heavy snowfall in Bucharest February 14, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Ialomita, Giurgiu and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather, according to local media. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A woman shovels the sidewalk after a heavy snowfall in Bucharest February 14, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Ialomita, Giurgiu and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather, according to local authorities. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man shovels around snow-covered cars after heavy snowfall in Bucharest February 14, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Ialomita, Giurgiu and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A snow plough clears a road blocked by snow near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

People cross the street during heavy snowfall in Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man clears the snow in front of a house in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Cristian Ionascu pushes a wheelbarrow loaded with chopped wood outside his home during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Cristian Ionascu unloads a wheelbarrow with chopped wood outside his home during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Nicoleta Ionascu cuts wood outside her home during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A "Beware of the dog" sign covered by icicles is seen on a fence during heavy snowfall at a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A road sign is seen buried in snow on a blocked road near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

Nicoleta Ionascu cuts wood outside her home during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man protects his face from blizzards as he walks along a road blocked by snow near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Traffic policemen stop vehicles due to heavy snowfall near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

A snow plough clears the snow from the road in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A snow plough clears a road blocked by snow near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A woman reacts as she walks during heavy snowfall near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man walks near a line of vehicles stopped by the police due to heavy snowfall near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A woman walks past a car during heavy snowfall near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Two women walk during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man walks along a road during heavy snowfall in a village near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Two policemen stand behind a sign signalling that the road is blocked by snow near Buzau town, 110 km (67 miles) northeast of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man walks between trucks caught in a traffic jam caused by heavy snowfall on the outskirts of Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A snow-covered car is seen during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

People enter a subway station during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man shovels snow during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

People walk during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A woman walks past a snow-covered car during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

People enter a subway station during heavy snowfall in Bucharest February 13, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man clears the snow behind a giraffe made of plastic erected in front of the National Museum of Natural History Grigore Antipa in Bucharest February 12, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY ANIMALS) 

A man clears the snow behind a giraffe made of plastic erected in front of the National Museum of Natural History Grigore Antipa in Bucharest February 12, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY ANIMALS) 

A woman pulls a cart loaded with scrap wood she collected to make fire along a snow drift on a street in Bucharest February 12, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Radu Sigheti (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man pushes his bicycle on a snow-covered road during heavy blizzards near Cotorca village, 70 km (43 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Men push a stalled car on the road in heavy snowfall near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

An elderly man walks on a snow-covered field near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Ice is seen on a man's face during heavy blizzards on a road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

An elderly man walks on a snow-covered field near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY) 

Men push a stalled van on the road during heavy snowfall near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

People add tyre chains to their stalled cars on the road during heavy snowfall, near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

A man pushes his bicycle on a snow-covered road during heavy blizzards near Cotorca village, 70 km (43 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man helps his elderly relative down a drift on a snow-covered road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Ice is seen on a man's face during heavy blizzards on a road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY HEADSHOT) 

A heavy vehicle opens a path through a snow-covered road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

A man shovels snow covering a road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

An elderly man walks on a snow-covered field near cars which have stalled on the road in heavy snowfall, near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

People walk on a snow-covered road near Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 12, 2012, as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimated 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY) 

A cat stays on snow covering her master's house up to the roof in Glodeanu Silistea village, 75 km (47 miles) northeast of Bucharest February 11, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimate of 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY ANIMALS) 

A man jumps down from a two-metre high snow-shield in the village of Glodeanu Silistea, 75 km (47 miles) northeast of Bucharest February 11, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimate of 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Men carry bread and water for isolated people in the snow-covered village of Glodeanu Silistea, 75 km (47 miles) northeast of Bucharest February 11, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimate of 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY) 

Members of a private security company try to clear a snow-covered house in Carligu Mic village, 75 km (47 miles) northeast of Bucharest February 11, 2012 as icy weather continues across Europe. Romania's counties of Buzau, Galati, and Vrancea have been hit by heavy blizzards with an estimate of 60,000 people being left stranded by the severe winter weather. REUTERS/Bogdan Cristel (ROMANIA - Tags: ENVIRONMENT SOCIETY)