Sir David Attenborough says nature shows have a "responsibility" in the battle against climate change.
The 92-year-old broadcaster has explained the important role documentary makers focused on natural history have in the modern world, and insisted his role has become much more than simply comment on all the "wonderful things" caught on film.
He told BBC Science Focus Magazine: "There's a big responsibility that natural history filmmakers have.
"I'd love to spend the whole time saying: "Look at these wonderful things, aren't they lovely?" But you have a responsibility for pointing out that unless we change our ways, they're not going to be here forever."
Sir David - whose new Netflix series "Our Planet" will launch on the streaming platform on Friday (05.04.19) admitted it is "naive" to suggest that changes will be made "overnight", but he added it is something that can change over time.
He added: "It would be naive to think suddenly that you can say something and these enormously powerful men and organisations are going to change overnight. The world doesn't work like that.
"But there are groundswells, there are these great sea changes that are difficult to plot, but they do happen. It's up to us to bring that about."
Meanwhile, Sir David - who has fronted BBC series like "Blue Planet", "Planet Earth" and "Dynasties" in the past - previously insisted while he can't help but be moved by the plight of some of the animals that he has filmed over the years, he has "never" shed a tear.
He said: "I've never cried while filming, but I suppose I cry more easily nowadays. Well, tears don't pour down my cheeks, but I blinked hard on November 11."