When Stephen Hawking spoke, the world listened. He made chilling warning to the world about Donald Trump.

Before Trump was even elected as president, Hawking described him as ‘a demagogue who seems to appeal to the lowest common denominator.’

Hawking told the BBC the Republican’s decision on Paris could eventually see Earth turn into a planet like Venus with a temperature of 250°C.

‘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 250C, and raining sulphuric acid.”

‘Climate change is one of the great dangers we face, and it’s one we can prevent if we act now. By denying the evidence for climate change, and pulling out of the Paris Climate Agreement, Donald Trump will cause avoidable environmental damage to our beautiful planet, endangering the natural world, for us and our children.’

In March last year, Hawking said he no longer felt welcome in the United States, now that President Trump was in power.

His children Lucy, Robert and Tim confirmed that he had died peacefully at his home in Cambridge, Britain, in the early hours of Wednesday morning.

“We are deeply saddened that our beloved father passed away today. He was a great scientist and an extraordinary man whose work and legacy will live on for many years. His courage and persistence with his brilliance and humour inspired people across the world.

“He once said, ‘It would not be much of a universe if it wasn’t home to the people you love.’ We will miss him forever.”