[EMAIL PROTECTED] wrote:
        
> I am not sure what Branson's prize is about exactly. Presumably it
> would be for technology that could do the CO2 removal at very low
> energy and overall cost? What I've read about it sounds awfully vague.

I see RC found this:

http://www.virginearth.com/

wherein there are some more (but still rather vague) details. It looks 
like rather trying to eliminate all loopholes via detailed 
specifications, they are leaving it all to the discretion of the judges, 
which is probably reasonable enough.

It's clearly looking for free air capture, rather than using smokestacks 
as a starting point. As Eli has pointed out, that isn't necessarily the 
best choice, but OTOH it has the advantage of being location-free.

I'll not say more for fear of giving away my idea :-)

James

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