Sir David Attenborough warned humans had a "last chance" to change their behaviour and save the planet as he urged people to "stop waste of any kind".
The broadcaster and naturalist said the world is precious and should be "celebrated and cherished" in an interview on the BBC's Andrew Marr Show.
Sir David, 93, said it will be the younger generation who will have to make changes because “they will be able to see the consequences of what they do”.
"My lot are dying off and we are the ones that caused the problem," he said.
He also called on politicians to address climate change saying it is "the biggest problem humanity has ever faced".
“My lot are dying off and we are the ones that caused the problem.”
He suggested people should see the world and their time in it as precious, saying “that’s the fundamental attitude”.
He warned: “The world is not a bowl of fruit in which we can just take what we wish. We are part of it and if we destroy it we destroy ourselves.”
Asked what people can do to help protect the planet, Sir David said: “Stop waste. Stop waste of any kind. Stop wasting power, stop wasting food, stop wasting plastic. Don’t waste, this is a precious world. Celebrate and cherish.”
He went on to say that his message to world leaders would be: “This is the last chance.
“There are short-term problems and long-term problems.
“A politician is tempted to deal with short-term problems all the time and neglect long-term problems.
“This is not only a long-term problem it is the biggest problem humanity has faced. Ever.
“Please examine it and please respond.”
Sir David has worked with Netflix to produce an upcoming documentary called A Life On Our Planet which looks at the challenges facing Earth and what can be done to address them.
