Telegraph: Polishing the portholes on the Titanic hardly does it justice. This week saw ministers giving an uncanny impersonation of Corporal Jones urging calm over the Grangemouth refinery strike; lorry drivers protesting in Park Lane over a two pence rise in fuel duty; and much righteous indignation over the level of profits reported by Shell and BP. All of which entirely misses the point. These issues are trifling compared to global oil depletion, where there have been several distinct turns for the …