Royal family to replace helicopters after flights cost more than £1m last year - The Guardian

1. Royal family to replace helicopters after flights cost more than £1m last year  The Guardian
2. Solar panel castles and biofuel Bentleys: King Charles’s royal palaces go green in his first year as monarch  The Independent
3. Royal family to buy two new helicopters despite green push  The Times
4. King to set up ‘hidden’ solar farm at Sandringham  The Telegraph