King Charles could sell the Family Silver to save the planet.

It is no wonder that Charles backs renewable energy. Aside from vast acres of wild lands suitable for onshore wind, the estate owns most of the British foreshore to a distance of 12 miles – perfect for selling leases for offshore wind, tidal and wave power.Charles could happily dispose of most of the many thousands of great diamonds, rubies and other jewels that have been handed personally to royalty over 200 years without anyone caring. The billions of pounds raised from such a sale could be used to establish academies of sustainable farming or permaculture in the Commonwealth countries from which most jewels were looted in colonial times and many of which are still struggling to feed themselves.