An Alcoa Inc. aluminium worker is silhouetted next to Aeolian Power's wind turbine in Sardinian, in Portovesme, next to Cagliari, Italy, September 1, 2012. REUTERS/Alessandro Bianchi/ File Photo

An Alcoa Inc. aluminium worker is silhouetted next to Aeolian Power's wind turbine in Sardinian, in Portovesme, next to Cagliari September 1, 2012. Italian bomb disposal experts safely exploded a device on Saturday left outside the Sardinian plant of Alcoa Inc., in an escalation of tensions over the U.S. aluminum producer's plans to shut down the factory. Picture taken September 1, 2012.
REUTERS/Alessandro Bianchi (ITALY - Tags: CRIME LAW POLITICS BUSINESS ENERGY)

Isidoro Bocanegra of Spain presents the aeolian system he invented, at the 34th International Exhibition of Inventions, New Techniques and Products at Palexpo in Geneva, Switzerland, April 5, 2006. His creation has two rotors that turn in opposite directions, creating better air performance. They can work at smaller speeds of wind and reduce acoustic emissions.

Isidoro Bocanegra of Spain presents the aeolian system he invented, at the 34th International Exhibition of Inventions, New Techniques and Products at Palexpo in Geneva, Switzerland, April 5, 2006. His creation has two rotors that turn in opposite directions, creating better air performance. They can work at smaller speeds of wind and reduce acoustic emissions. REUTERS/Denis Balibouse

A giant bull billboard is surrounded by wind turbines in a dry field at Los Monegros in Aragon near Zaragoza city, Spain December 13, 2005. Spain is the world's second-largest producer of wind power after [Germany]. The growing renewable energy industry has created thousands of new jobs and the government projects wind power capacity will nearly triple by 2011 to help meet demand and reach [Kyoto Protocol] targets for reducing greenhouse gas emissions.

A truck sits parked underneath a windmill as the sun rises over a windmill farm in Palm Springs, California November 26, 2005.

The sun rises over a windmill farm in Palm Springs, California November 26, 2005.

The sun rises over a windmill farm in Palm Springs, California November 26, 2005.

The sun rises over a windmill farm in Palm Springs, California November 26, 2005.

A mock windmill is erected by Greenpeace activists during a campaign on promoting wind energy development in Hong Kong September 19, 2005. Greenpeace China on Monday call on Hong Kong government and local power companies to give local citizens a choice for wind energy to reduce carbon dioxide pollution.

-PHOTO TAKEN 14DEC05- A wind turbine producing electricity operates near Newcastle, about 125 km (78 miles) north of [Sydney] December 14, 2004. A report released at an international wind conference in Sydney on Wednesday says that New South Wales, Australia's most populous state, could have all its domestic power needs met by wind power within five years if it receives government support, Australian radio reported. Photo taken December 14, 2004.

Picture shows the new REpower 5M wind generator located beside a nuclear power plant in Brunsbuettel (in background) about 60 kilometres north-west of the northern German city of Hamburg February 2, 2005. The new 5MW prototype of German company REpower Systems AG starts into service today and has a rotor diameter of 126 metres, a hub height of 120 metres and its 5.0-MW machine is destined for offshore use but the prototype will be operated first on land.

-PHOTO TAKEN 29NOV04- Windmills have been constructed to generate electricity, maintain bio-diversity and develop eco-tourism for the people of Saint Martin Island, Bangladesh November 29, 2004. With an area of eight square km, Saint Martin is 550 km (344 miles) from [Dhaka] and 12 km (7.5 miles) from the mainland. Bangladesh's only coral island, it is now one of the main tourist destinations. Picture taken November 29, 2004.

A Technician fixes a rope on the third rotor wing of a giant wind generator on a construction site in Brunsbuettel about 60 km north-west of the northern German city of Hamburg October 1, 2004. The new 5MW prototype of German company REpower Systems AG is to be completed today and with a rotor diameter of 126 metres and a hub height of 120 metres its one of the world largest wind generators. Its 5.0-MW machine is destined for offshore use but the prototype will be operated first on land.

Technicians stand under a rotor wing of a giant wind generator during its assembly on a construction site in Brunsbuettel about 60 km north-west of the northern German city of Hamburg October 1, 2004. The new 5MW prototype of German company REpower Systems AG is to be completed today and has a rotor diameter of 126 metres, a hub height of 120 metres and its 5.0-MW machine is destined for offshore use but the prototype will be operated first on land.

Cranes lift up the rotor of a giant wind generator in Brunsbuettel about 60 km north-west of the northern German city of [Hamburg] October 1, 2004. The new 5MW prototype of German company REpower Systems AG is one of the worlds largest wind generators and has a rotor diameter of 126 metres, a hub height of 120 metres and its 5.0-MW machine is destined for offshore use but the prototype will be operated first on land.

Mechanics work on wind turbines made by German company Enercon in Aurich near Germanys North Sea coast June 25, 2004. Enercon, one of the worlds biggest producers for wind power energy stations, celebrates its 20th jubilee on July 1, 2004.

Mechanics work on wind turbines made by German company Enercon in Aurich near Germany's North Sea coast June 25, 2004. Enercon, one of the worlds biggest producers for wind power energy stations, celebrates its 20th jubilee on July 1, 2004.

Mechanic Michael Schmidt works in the head of an E-30 wind turbine made by German company Enercon at the company headquarters in Aurich near Germany's North Sea coast June 25, 2004. Enercon, one of the worlds biggest producers of wind power energy stations, celebrates its 20th jubilee on July 1, 2004.

Greenpeace activists hold up a banner during a demonstration with pretend wind turbines in front of Mexico City's monument to the revolution May 12, 2004. [Mexican activists say that in spite of the fact that Mexican oil reserves are limited, the Mexican government is not contemplating the development and advantages of wind power.]

A wind powered energy station stands in front of the chimney of a refinery of French oil producer Total near the eastern German town of Leuna south of Leipzig March 25, 2004. [German Environment Minister Juergen Trittin recently presented a draft plan detailing the carbon dioxide (CO2) cuts that national energy and industrial sites would have to make as part of the European Union's emissions trading scheme, which starts next January.]

- PHOTO TAKEN 12SEP03 - A new turbine waits to be assembled at the Dabancheng Wind Power Plant in the central part of China's Xinjiang Uighur Autonomous Region September 12, 2003. The wind power plant, with 172 turbines and capable of producing 9.05 megawatts, is the biggest in China and Asia. Xinjiang's wind power resources are abundant but wind-generated electricity is still relatively expensive and technical problems need to be solved before wind can contribute more significantly to China's power mix. [For about three decades, Turkic-speaking Muslim Uighurs, who form the dominant ethnic group there, have used political and militant activities to work towards independence from China. Picture taken September 12, 2003.]

- PHOTO TAKEN 12SEP03 - An Uighur sherpard herds his sheep at the Dabancheng Wind Power Plant in the central part of China's Xinjiang Uighur Autonomous Region September 12, 2003. The wind power plant, with 172 turbines and capable of producing 9.05 megawatts, is the biggest in China and Asia. Xinjiang's wind power resources are abundant but wind-generated electricity is still relatively expensive and technical problems need to be solved before wind can contribute more significantly to China's power mix. [For about three decades, Turkic-speaking Muslim Uighurs, who form the dominant ethnic group there, have used political and militant activities to work towards independence from China. Picture taken September 12, 2003.]

- PHOTO TAKEN 12SEP03 - An oil truck passes the turbines of the Dabancheng Wind Power Plant in the central part of China's Xinjiang Uighur Autonomous Region September 12, 2003. The wind power plant, with 172 turbines and capable of producing 9.05 megawatts, is the biggest in China and Asia. Xinjiang's wind power resources are abundant but wind-generated electricity is still relatively expensive and technical problems need to be solved before wind can contribute more significantly to China's power mix. [For about three decades, Turkic-speaking Muslim Uighurs, who form the dominant ethnic group there, have used political and militant activities to work towards independence from China. Picture taken September 12, 2003.]

Tourists climb up wind-powered generators on the German north sea coast near Klanxbuell about 180 kilometers north of Hamburg July 16, 2003. Depending on the wind conditions, tourists can climb up these generators to a height of 40 meters to enjoy a view of the surrounding countryside.

The pack of riders passes by a row of windmills during the 195-km eighth stage of the Tour of Spain cycling race from Reinosa to Alto Cruz de la Demanda September 15, 2001. [Spain's Jose Maria Jimenez won the stage.]

Dairy cows graze in a field in front of wind turbines near France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Dairy cows graze in a field in front of wind turbines near France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Dairy cows graze in a field in front of wind turbines near France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Wind turbines are silhoutted against evening storm clouds near France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. Storms and high winds have ravaged north-western France during the past week causing unusually rough seas and damage to property. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Wind turbines are silhoutted against evening storm clouds on France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. Storms and high winds have ravaged north-western France during the past week causing unusually rough seas and damage to property. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Wind turbines are silhoutted against evening storm clouds on France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. Storms and high winds have ravaged north-western France during the past week causing unusually rough seas and damage to property. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Wind turbines are silhoutted against evening storm clouds on France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. Storms and high winds have ravaged north-western France during the past week causing unusually rough seas and damage to property. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

Wind turbines are silhoutted against evening storm clouds on France's western-most point at Goulien in Finistere, Brittany, November 2, 2000. Storms and high winds have ravaged north-western France during the past week causing unusually rough seas and damage to property. The Goulien wind turbines (or Aeolians) produce an annual output of 14,970,000 Kilowatts of electricity for the Cap Sizun region.

A line of giant modern windmills spin January 12 situated on a hill on the far eastern edge of the Golan Heights overlooking the Syrian town of Kuneitra (C) and with a commanding view of the Mount Hermon mountain range to the north. The Hermon mountains are both in Israel (left side) and Syria (right side). The issue of the Golan Heights and security needs of both Israel and Syria are among the major points to be negotiated in any Israeli - Syrian peace accord.

An old, abandoned Israeli army bunker and huge spinning windmills dominate a hilltop on the eastern Golan Heights late January 12 afternoon overlooking the Syrian town of Kneitra and the Mount Hermon mountain range (background, center) which lies both in Israeli and Syrian territory. Israel abandoned the trench bunker years ago as the United Nations maintains a force a few hundred meters below at a border crossing point between Israel and Syria. The Israeli windmills, a private enterprise by a Golan Heights Jewish settler, produce enough power to provide electricity to some 20,000 people - more than the Israeli inhabitants of the Golan Heights. The power is sold to the Israeli electrical grid.

Israeli army Merkava tanks on manoeuvres close to the Syrian border in the central Golan Heights January 12 near a row of windmills on a hilltop. The windmills produce enough power to provide electricity to some 20,000 people - more than the Israeli inhabitants of the Golan heights. The power is sold to the Israeli electrical grid. As Israel and Syria pause in their peace negotiations two important factors are yet to be negotiated - overall security needs of the two countries and the return of the Golan Heights, a strategic plateau that Israel captured from Syria in the 1967 Middle East war.

Greenpeace activists hold up a banner in front of windmills and a "SAVE THE CLIMATE" banner hung from Buenos Aires' most famous monument, the Obelisk, at daybreak on November 2. The protest was planned to call attention to the 12-day, United Nations conference on climate change in which a reluctant world will try to commit itself to strict controls on greenhouse gas emissions to slow global warming.
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Harry Ivory, 84, of Melbourne smiles at a lawnmowing garden gnome he will place in his front yard August 12. A collector for about seven years, Ivory reckons he has 70 gnomes that decorate his remarkable garden which features bird baths, miniature windmills, towers, boxing rings and a fish pond. A former boxer and physical education expert, Harry still teaches a weekly water aerobics class and attributes his fitness and gardening interests to his longevity.