The Duke of Cambridge says that fatherhood has increased his desire to protect nature for future generations.
William was joined by a film crew two years ago, who recorded his search for ways to protect the natural world for the ITV documentary Prince William: A Planet For Us All – to be aired next month.
William said he has “always loved nature”, but fatherhood has given him “a new sense of purpose”.
William meets people in the UK and abroad who are playing their part in protecting and restoring the environment during the programme, according to Kensington Palace.
It also charts his journey from being passionate about conservation to wanting to play a greater global leadership role on the environment, they added.
William also says that his children – George, seven, Charlotte, five, and two year-old Louis – have had an impact on his views.
He said: “Now I have got George, Charlotte and now Louis in my life – your outlook does change. You want to hand over to the next generation, the wildlife in a much better condition.”
William adds: “I always believe it is possible to give young people hope and belief that things can get fixed.
“I have the belief that if we all work together, we can make a difference.”
Naturalist Sir David Attenborough, who makes an appearance in the programme, said: “Kids know an awful lot about what is happening to the world.