Guardian: Alistair Buchanan has set sail on the good ship Discovery to find a solution to Britain’s twin needs of meeting energy-security and climate-change goals. But the Ofgem regulator might have better named his exploratory vessel Recovery, because this is a voyage to make up for lost time: it should have been launched years ago when North Sea supplies first started to run out and global warming began to be noticed. Buchanan has been the target of criticism because he is the man at …