The list is to be used to decide which sites of special scientific interest (SSSI) should have money spent on them to prevent over-abstraction by water-companies, which is the process of removing water for domestic or industrial use.

BBC: Campaigners claim beauty spots 'at risk'

"The process also uses less water and energy - we simply use coloured bottles to avoid using dye, " says Alex Lo, the company's managing director.

BBC: Technology

These use an electrical process to transform salt and water into chlorine and caustic soda (a.k.a. lye), which are the building blocks of everything from plastics to soap.

FORBES: Chemical Balance

Fuel cells make hydrogen and oxygen react together to produce water and electricity in the reverse of the process that the Icelanders propose to use to make the hydrogen in the first place.

ECONOMIST: Clean living in Iceland

The focus of the deal between Nocera and Tata revolves around the use of catalysts to produce power by splitting water molecules, similar to the process that occurs during part of the photosynthetic cycle.

FORBES: Tata Signs Deal In the Hopes of Producing Power From Water

And because the bacteria use oxygen in the water as they digest oil, scientists are concerned that process could cause an oxygen-depleted area underwater a "dead zone" that could choke off a variety of undersea life.

WSJ: Gauging Harm to Ecosystem Could Take Years

Last Friday, the U.S. Environmental Protection Agency (EPA) amended an obscure clean water regulation that restricted use of aluminum in automobiles because of a potentially harmful byproduct created in the manufacturing process.

FORBES: Magazine Article