https://www.cbsnews.com/news/stephen-hawking-sounds-alarm-about-climate-change-in-new-book/
In posthumous message, Stephen Hawking warns of "reckless indifference to our future" - CBS News
Stephen Hawking, who died in March at 76, writes that humanity was behaving with "reckless indifference to our future on planet Earth," Vox reports
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