Stephen Hawking’s final warning to humanity
‘Our physical resources are being drained, at an alarming rate. We have given our planet the disastrous gift of climate change,’ Hawking warned in July.
‘Rising temperatures, reduction of the polar ice caps, deforestation, and decimation of animal species. We can be an ignorant, unthinking lot.’
Professor Hawking said that Earth will one day look like the 460°C (860°F) planet Venus if we don’t cut greenhouse gas emissions.
‘Next time you meet a climate change denier, tell them to take a trip to Venus. I will pay the fare,’ Hawking quipped.
The physicist also believed President Donald Trump’s decision to withdraw from the Paris Climate Agreement has doomed our planet.
If global warming doesn’t wipe us out, Hawking believed Earth would be destroyed by an asteroid strike.
‘This is not science fiction. It is guaranteed by the laws of physics and probability,’ he said. ‘To stay risks being annihilated.
‘Spreading out into space will completely change the future of humanity. It may also determine whether we have any future at all.’
Professor Hawking was working with Russian billionaire Yuri Milner’s Breakthrough Starshot project to send a fleet of tiny ‘nanocraft’ carrying light sails on a four light-year journey to Alpha Centauri, the nearest star system to Earth.
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