Humanity is running out of time. Stephen Hawking, the brilliant mind who peered deeper into the universe than almost anyone, left behind a chilling warning about our future on Earth. He spoke of a planet pushed to the brink by our hunger for energy, our swelling numbers, our reckless pace. He saw a world burning, a globe glowing red-hot, an uninhabitable fireball. He dared to put a date on our downfall, to imagine the moment when the ground beneath our feet finally gives wa… Continues…