A new study provides evidence that people are capable of radically altering the world, offering hope in the face of climate change.
It's not humanity alone that threatens life on earth. The bigger culprit is an economic and political system that relies on endless global appropriation of cheap food, energy, raw materials and labor.
“Apocalyptic pronouncements from scientists and entrepreneurs have driven [a] surge in interest” in artificial intelligence, writes The Guardian's science editor Ian Sample. But is it reasonable to expect that machines will one day willfully turn on their human creators?