Dropping it to 16C - the lowest setting in this virtual world - only shaves 7% off carbon emissions.

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Even in this new virtual world, mom still knows best.

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It is a spin on the traditional social game where you are only rewarded in the virtual world, in this case, the prize arrives on your doorstep.

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David Savill, 22, lives in Gloucester, England, in real life and created this spot within the virtual world of Second Life.

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Thus it's not clear to everyone why the world really needs this grand experiment in virtual currency.

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And with the launch of Sony's PlayStation Home -- an online world for the games console -- this autumn, it seems the big players in the entertainment world are banking on virtual realms being part of the future, too.

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Indeed, the story that he fell in love with someone he never met, even in this world of pixelated love objects, appears to be preposterous even to those of us digitalsexuals who are into virtual relationships.

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