Jeremy Clarkson has extended an invitation to Prince William to come and help him at Diddly Squat Farm.

The prince has criticised billionaires who are engaged in the space race saying they should try to fix this planet before trying to find the next place to go to live.

Jeremy wrote is his latest column for the Sun: "It's tricky for the people who advise Prince William because he’s got to be interesting without being interesting and edgy without being edgy.

"And he has to say things that matter without saying anything at all about stuff that matters."

Prince William also criticised people who drop litter.

Jeremy wrote: "That’s safe ground, Your Highness. And if you’d like, you can come to my farm and help me pick up the mountain of c**p that’s blown into the fields every day. And the old fridges that are dumped in the gateways.

"Then, in the evening, we could have a pint and chat about how you once secretly played the part of a Storm-trooper . . . in a movie called Star Wars."

The host of The Grand Tour and Who Wants to be a Millionaire added of the prince: "He is no doubt a very lovely man and he has an almost impossible job. Waiting. And while waiting, being, not doing."