Pope Francis "has no business banging on about climate change," according to the editorial of The Sun newspaper.

A column in the daily red top accused the pontiff of being "irrelevant" on the issue.

Francis has raised concerns about the welfare of the planet on several occasions and made an impassioned speech about the issue from the White House lawn on Wednesday.

Francis said: "When it comes to the care of our common home we are living at a critical moment of history.

"We still have time to make the change needed to bring about a sustainable and integral development, for we know that, things can change.

"Such change demands on our part a serious and responsible recognition, not only of the kind of the world we may be leaving to our children but also to the millions living under a system which has over looked them."

President Barack Obama and Pope Francis are flanked by a U.S. and Vatican flag during speeches

But 'The Sun says' criticised the Holy Father for getting involved.

"This has nothing to do with faith," it blasted.

"It's about science and provable facts. That science is disputed, some of it discredited. The Pope's belief is irrelevant."

It added: "Stick to religion, Your Holiness."