Stephen Hawking has warned that President Donald Trump’s decision to pull out of the Paris climate agreement could be the “tipping point” which could wipe out humanity and turns our planet into a living hell.

Mr Hawking is worried that Mr Trump’s decision to withdraw US from he deal to combat global warming could cause irreversible changes which may doom our planet to a grim fate.

“We are close to the tipping point where global warming becomes irreversible. Trump’s action could push the Earth over the brink, to become like Venus, with a temperature of two hundred and fifty degrees, and raining sulphuric acid,” he told the BBC.

“By denying the evidence for climate change, and pulling out of the Paris Climate Agreement, Trump will cause avoidable environmental damage to our beautiful planet, endangering the natural world, for us and our children.

“Climate change is one of the great dangers we face, and it’s one we can prevent if we act now,” he said.