Shale is a possible long-term resource, but we do not yet know.

Source: 
The Guardian
Person: 
Vincent Cable, Business Secretary
Statement Date: 
Tuesday, 4 February 2014
View similar opinions on this theme: 
Source URL: 
http://www.theguardian.com/environment/2014/feb/04/vince-cable-shale-gas-uk-fracking?CMP=twt_gu