Prince William has vowed to “restore the planet” as she hailed the Queen’s commitment to the environment.
The Duke of Cambridge was speaking at the Platinum Party at the Palace as a part of the Jubilee celebrations to mark 70 years of the reign of the Queen.
More than 30 members of the Royal Family gathered for the party, although the Queen was unable to attend due to mobility issues.
Noting that his grandmother has been “alive for nearly a century”, Prince William said that “decades of making the case for taking better care of our world has meant that environmental issues are now at the top of the global agenda”.
The Duke of Cambridge said that he, too, was “so proud” of his father and grandfather.
The Duke added: “And I’m in awe of people like the great Sir David Attenborough who look at the beauty and power of our earth and then work to celebrate and preserve it.
“While no one’s grandmother thanks them for talking about their age, my own grandmother has been alive for nearly a century.
“In that time, mankind has benefited from unimaginable technological developments and scientific breakthroughs.”