Letter: All in a flap over wind theory

Sir: The letter by Andrew Cosgrave ("Wind turbines a threat to climate", 13 January) had me very worried until I realised that your staff must have made a mistake: it was meant to be published on 1 April. If I am not mistaken, please advise and I will stop my grandchildren from browning bits of paper with a magnifying glass: such interference may also affect the climate. Or would that produce global cooling, something which is desirable?

ANDREW SEAGER

Whitchurch, Oxfordshire