Sarah Ferguson, Duchess of York, believes her generation have a "responsibility" to look after the planet.
The 65-year-old royal - who is grandmother to pregnant Princess Beatrice's three-year-old girl Sienna and her eight-year-old stepson Wolfie, and Princess Eugenie's sons August, three, and 15-month-old Ernest - hopes to instill in her grandchildren a love of the countryside and though she won't "preach" about taking care of nature, she wants to lead by example.