SIR – Mindless groupthink on net-zero energy policy, with its cost repercussions and impact on security of supply, has sown the seeds of social unrest in Britain (“European energy key to keeping lights on this winter”, report, July 28).
SIR – The polar division within the Tory party is painfully demonstrated in the conflicting aims of the two leadership candidates, neither of whom has demonstrated any of the qualities needed to unify that party.