Prince Charles has urged world leaders to "think of your grandchildren, as I think of mine" as he demanded greater action to tackle climate change.
World leaders have gathered in Paris for the start of crucial talks on the subject.
Charles is due to give a speech to delegates on the protection of forests as part of the talks.
French President Francois Hollande has said the battle against global warming is of equal importance to the world as the ongoing fight against Islamic State and other terror groups.
"I can't separate the fight with terrorism from the fight against global warming," Mr Hollande said in his address at the opening of the UN conference talks in Paris.
"These are two big global challenges we have to face up to," he said. "Because we have to leave our children more than a world freed of terror, we also owe them a planet protected from catastrophes."
Prior to his address Mr Hollande led world leaders in a minute's silence in honour of the victims of the recent jihadist attacks in the city, which claimed the lives of 130 people.
Barack Obama's greatest struggle on climate change could be convincing the conspiracy theorists at home that it's not a hoax.
People across the globe have posed their questions for President Obama as he takes part in the UN Climate Conference in Paris.
The Prince of Wales said world companies 'pay no attention' to the damage their supply chains cause to forests.