Stephen Hawking speaks with BBC News during his 75th birthday celebrations, on 2 July 2017. '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 BBC News. Photo: BBC News

By Pallab Ghosh
2 July 2017

(BBC News) – Stephen Hawking says that US President Donald Trump's decision to pull out of the Paris climate agreement could lead to irreversible climate change.

Prof Hawking said the action could put Earth onto a path that turns it into a hothouse planet like Venus.

He also feared aggression was "inbuilt" in humans and that our best hope of survival was to live on other planets.

The Cambridge professor spoke exclusively to BBC News to coincide with his 75th birthday celebrations.

Arguably the world's most famous scientist, Prof Hawking has had motor neurone disease for most of his adult life. It has impaired his movement and ability to speak.

Yet through it all, he emerged as one of the greatest minds of our time. His theories on black holes and the origin of the Universe have transformed our understanding of the cosmos.

Prof Hawking has also inspired generations to study science. But through his media appearances what has been most impressive of all has been his humanity.

“Great danger”

His main concern during his latest interview was the future of our species. A particular worry was President Trump's decision to withdraw from the Paris climate agreement to reduce CO2 levels.

"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 BBC News.

"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." [more]

Hawking says Trump's climate stance could damage Earth

1 comments :

  1. Anonymous said...

    I thought it already was irreversible?  

 

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