Spanish green MEP Raul Romeva i Rueda urged the EU to tell Morocco that "enough was enough", whilst British conservative Charles Tannock said the dispute was destabilising the whole region.

BBC: Western Sahara debate

In other green tech news, Spanish researchers have developed a new type of biological concrete that makes it easier to attach plants to the side of buildings to create living walls.

ENGADGET: Inhabitat's Week in Green: biological concrete, flexible solar cells and the top wearable tech of 2012

Installed by UGE Iberia, the Spanish branch of New York-based Urban Green Energy, the first wind-powered EV charging station is located at Cespa's global headquarters near Barcelona.

ENGADGET: GE, Urban Green Energy set up first integrated, wind-powered EV charging station (video)

Even as the Danes, Spanish and Germans were cornering the market in turbines, the City of London was developing green-energy services.

ECONOMIST: Renewable energy

Spanish socialist MEP Antolin Sanchez-Presedo said he had acted "bravely and courageously", but Belgian green MEP Philippe Lamberts was critical of Mr Trichet's position that "the only way to ensure stability is to cut spending", a stance denied by Mr Trichet.

BBC: Jean-Claude Trichet: Economic crisis biggest since WWII