engineers create petrol from air and water., page-7

Daruma,

"The technique involves extracting carbon dioxide from air and hydrogen from water,..."

Quotes from from Scientific American:

"Efforts to remove CO2 directly from the air are likely to prove too expensive to be practical"

"For the scientists conducting the study, air capture was shown to be largely wishful thinking "

http://www.scientificamerican.com/article.cfm?id=scrubbing-carbon-dioxide-air-too-expensive

I'd say that where the British co is at in synthesising petrol, is totally irrelevant to what GGP is doing.