Seaweed is seen at low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT) 

A tractor clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

People watch as a bulldozer clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A tractor clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A tractor clears away masses of seaweed during low tide on a beach near an information placard about masses along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A tractor clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A tractor clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL TPX IMAGES OF THE DAY) 

People walk at low tide near large quantities of seaweed on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A bulldozer clears away masses of seaweed during low tide on a beach along the French coastline at Saint Michel-en-Greve, Northern Brittany, August 12, 2013. REUTERS/Stephane Mahe (FRANCE - Tags: ENVIRONMENT TRAVEL) 

A man wearing a seaweed face mask is reflected in a mirror as he inspects his face while having a facial, which costs $7 (300 pesos), at a spa and facial centre in Mandaluyong City, Metro Manila May 22, 2013. Men's beauty treatments are popular in the Philippines, part of a thriving market for male cosmetics in the Asia Pacific region. Some Filipino men go to great lengths to preserve their faces, from those who visit clinics to receive skin treatments, to fishermen who wear fabric masks while working to protect their skin from the sun. Picture taken May 22, 2013. REUTERS/Cheryl Ravelo (PHILIPPINES - Tags: SOCIETY HEALTH TPX IMAGES OF THE DAY)

ATTENTION EDITORS: PICTURE 17 OF 31 FOR PACKAGE 'MALE BEAUTY, MANILA STYLE' SEARCH 'MALE BEAUTY' FOR ALL IMAGES 

Boys walk through seaweed during low tide on the coast of the Arabian Sea, on the outskirts of Karachi March 21, 2013. World Water Day will be held on March 22, with the theme of water cooperation. REUTERS/Akhtar Soomro (PAKISTAN - Tags: ENVIRONMENT) 

Mike Martin pushes a wheelbarrow full of seaweed left by Hurricane Sandy back to the ocean in Fairhaven, Massachusetts October 30, 2012. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: ENVIRONMENT DISASTER) 

A boy walks through seaweed during low tide on the coast of the Arabian Sea, on the outskirts of Karachi March 16, 2012. World Water Day, which is celebrated on March 22, aims to focus on water and food security, according to the United Nations. Picture taken March 16, 2012. REUTERS/Akhtar Soomro (PAKISTAN - Tags: SOCIETY ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 23 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Portrait photos of Yukiko Watanabe, 44, and Kyoko, aged 69, are placed on a table inside Takaaki Watanabe's temporary house in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 17 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Manami Watanabe, 11, walks along a railtrack which is no longer used since last year's tsunami in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe's father, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 16 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Manami Watanabe, 11, plays on the remaining foundations of her family's house in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe's father, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 15 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, smokes a cigarette in his temporary home in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 14 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe prays in front of portrait photos of his late wife Yukiko and his mother Kyoko, in his temporary house in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 13 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe shows a picture of his wedding, that was rescued after the tsunami, in his temporary house in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 12 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
A family photo taken by Takaaki Watanabe, showing his wife, mother and three daughters, is pictured at his temporary house in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe, a seaweed farmer, was one of the lucky 5.8 percent from his hometown whose boat survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 10 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Lights are turned on in the rooms of a temporary house, where Takaaki Watanabe, 48, and his three daughters live since the tsunami swept away their house, in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Seaweed farmer Watanabe's boat was among the 5.8 percent in his hometown that survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao (JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 7 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, a seaweed farmer, prepares dinner for his children in his temporary home in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. "I have never done house chores before, and I still haven't gotten use to it," Watanabe said, as he sat inside a room that was cluttered with his daughters' clothes. "There is just not enough space and no time to clean up." Picture taken February 24, 2012. REUTERS/Yuriko Nakao (JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 6 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, a seaweed farmer, prepares in his temporary home, for a parent's day event held at his youngest daughter Manami's elementary school in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Since the tsunami Watanabe works a full day, attends school related events with his daughters, cooks, washes the dishes, does the laundry and shuttles his daughter to a train station 20 minutes away every morning and night. Once every few days his sister comes to cook dinner but still there is no time for him to rest. Picture taken February 24, 2012. REUTERS/Yuriko Nakao (JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 5 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, a seaweed farmer, walks with his daughter Manami, 11, after attending a parent's day event at her elementary school in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Tsunami waves swept away Watanbe's wife, mother and his house. Now, alongside his efforts to clear the rubble and revive the sea farming industry of his hometown, he has a new role - to take care of his three daughters. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 3 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, and fellow seaweed farmers take a break from preparing seaweed for shipment outside their newly built workplace in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 23, 2012. Traditionally, farming has been carried out in family units, however after the tsunami the farmers of Minamisanriku created a guild to combine their businesses. They decided to collaborate since there was no way to restart their business individually. Picture taken February 23, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 4 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, and fellow seaweed farmers prepare seaweed for shipment in their newly built workplace in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 23, 2012. Traditionally farming has been carried out in family units, however after the tsunami the farmers of Minamisanriku created a guild to combine their businesses. They decided to collaborate since there was no way to restart their business individually. Picture taken February 23, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 1 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, a seaweed farmer, stands on his boat "Ryuseimaru" anchored in the bay of Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Watanabe's boat was among the 5.8 percent in his hometown that survived the March 11, 2011 tsunami, however what he lost was much greater. Tsunami waves swept away his wife, mother and his house, that was built on land handed down to him through 13 generations. Picture taken February 24, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 8 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Takaaki Watanabe, 48, a seaweed farmer, dries his hair in his temporary home, ahead of a parent's day event for his youngest daughter Manami in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 24, 2012. Since the tsunami Watanabe works a full day, attends school related events with his three daughters, cooks, washes the dishes, does the laundry and shuttles his daughter to a train station 20 minutes away every morning and night. Once every few days his sister comes to cook dinner but still there is no time for him to rest. Picture taken February 24, 2012. REUTERS/Yuriko Nakao (JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

ATTENTION EDITORS: PICTURE 20 OF 23 FOR PACKAGE 'TSUNAMI - REBUILDING DAMAGED LIVES'
Seaweed farmers prepare seaweed for shipment in their newly built workplace in Minamisanriku town, in Miyagi prefecture, northeastern Japan February 23, 2012. Traditionally farming has been carried out in family units, however after the tsunami the farmers of Minamisanriku created a guild to combine their businesses. They decided to collaborate since there was no way to restart their business individually. Picture taken February 23, 2012. REUTERS/Yuriko Nakao(JAPAN - Tags: ANNIVERSARY DISASTER ENVIRONMENT) 

A man pulls a dinghy through toxic seaweed washed up on a beach at Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Many beaches in this region are plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

A demonstrator stands with the Breton flag on a beach polluted by toxic seaweed at Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers, protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

A demonstrator stands with the Breton flag on a beach polluted by toxic seaweed at Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers, protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups, some dressed in traditional Breton costumes, take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been know to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups, some dressed in traditional Breton costumes, take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups, some dressed in traditional Breton costumes, take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been know to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Demonstrators representing bio farming hold banners adorned with bunches of potentially toxic green seaweed as they take part in a protests on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. Banner at left reads - "The Bankers on the gratings" and at right - "Sarkozy, Fillon (France's President Nicolas Sarkozy and Prime Minister Francois Fillon) reduce intensive farming in Brittany and limit the runoff of agricultural waste. Help farmers to produce Bio". REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. Banner reads -"Yes to clean beaches, farming and water". REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups, some dressed in traditional Breton costumes, take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

Members of various ecology groups, some dressed in traditional Breton costumes, take part in a protest against toxic seaweed on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) 

A demonstrator representing bio farming holds a banner adorned with bunches of potentially toxic green seaweed as he takes part in a protests on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. Banner reads - "Together, let's build a society which is fairer, more equal and less poluting". REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

A demonstrator representing bio farming holds a banner adorned with bunches of potentially toxic green seaweed as he takes part in a protests on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT) 

A demonstrator representing bio farming holds a banner adorned with bunches of potentially toxic green seaweed as he takes part in a protests on the beach of Cap Coz near the town of Fousnant in Brittany, western France, September 18, 2011. Two groups of demonstrators, one representing ecology groups and another representing the point of view of French farmers protested at one of the many beaches in this region plagued by masses of green seaweed which has been known to give off strong toxic gasses as it starts decomposing. REUTERS/Mal Langsdon (FRANCE - Tags: AGRICULTURE DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) 

A wet dog returns to its master over masses of seaweed at low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL ANIMALS) 

A wet dog returns to its master over masses of seaweed at low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL ANIMALS) 

A closeup of a clam amongst the seaweed during low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A handful of seaweed is displayed as masses of green seaweed, which at times emits noxious gasses, is seen on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A closeup of seaweed is displayed as masses of green seaweed, which at times emits noxious gasses, is seen on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

Masses of green seaweed, which at times emits noxious gasses, is seen on a beach at Kerlaz near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A communal beach patrol vehicle drives on masses of green seaweed, which at times emits noxious gasses, at Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

Masses of green seaweed, which at times emits noxious gasses, is seen on a beach at Kerlaz near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A man crosses the mass of green seaweed, which at times emits noxious gasses, on Kerlaz beach to search for shellfish at low tide near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL) 

A dog runs through masses of seaweed at low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL ANIMALS) 

People cross the mass of green seaweed, which at times emits noxious gasses, on Kerlaz beach to search for shellfish at low tide near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL) 

A closeup of a clam amongst the seaweed during low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A closeup of a clam amongst the seaweed during low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A closeup of a clam amongst the seaweed during low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

A closeup of a clam amongst the seaweed during low tide on Kerlaz beach near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER) 

People cross the mass of green seaweed, which at times emits noxious gasses, on Kerlaz beach to search for shellfish at low tide near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL) 

Seagulls search for food amongst seaweed on a beach at Kerlaz near Douarnenez in Brittany, western France, August 30, 2011. REUTERS/Mal Langsdon (FRANCE - Tags: ENVIRONMENT SOCIETY TRAVEL DISASTER)