PriceWaterhouseCoopers have issued a report on the impact of shale gas on the economy, which seems to take a rather different view to previous pontifications on this subject. According to BBC Business, PWC reckon that shale will add a trillion dollars to world GDP, with conventional producers like Russia being big losers. In a second story, on the Scotland pages, it is revealed that the report's authors expect oil and gas prices to be significantly depressed by a surge in shale production.
I'm sure Mr Cameron will see this as an opportunity to apply further taxes.
Correction: the report concerns only shale oil.