Polluting volcano

SIR – The Agung volcano, which is erupting in Bali (report, November 28), has been estimated to release more CO2 in one week than all the world’s planes, ships and cars emit in a year.

I am curious as to how the Greens plan to control this. Alec Gwynn

Penzance, Cornwall transformed by entering the realm of royalty, and be celebrated more as Prince Harry making a transformation from royalty into the realm of the public. Dorabella Moskovic-thomas

London SW3

SIR – Prince Harry and I are the same age, but this year I celebrated my 10th wedding anniversary. I’m glad he’s found his Mrs Deasy at last. Dr Daniel Deasy

Dublin, Ireland

SIR – How we have progressed. In the early Seventies my application to attend a royal garden party and my further request to marry in church were both refused because I had previously divorced.

Lt Cdr Tony Collingswood RN (retd) Stockbridge, Hampshire SIR – The nation expects responsibility from the Royal family in line with Christian teaching, which it is their duty as protectors to uphold. By following the example of his father in marrying a divorcée, Prince Harry, like him a senior member of the Royal family, also compromises the respect of the Queen’s subjects. Dr Janet Voke

Monks Risborough, Buckinghamshire

SIR – I am saddened to report that Joe, my Norfolk terrier, unlike his royal cousins, did not instantly take to our new princess. In fact, he barked loudly when she appeared on our television.

This behaviour could, of course, be in anticipation of the torture to be endured from one additional day, at least, of fireworks in 2018. John Culling

Princes Risborough, Buckinghamshire