Today's Trending Digest

Artificial intelligence is getting smarter by leaps and bounds -- within this century, research suggests, a computer AI could be as 'smart' as a human being. And then, says Nick Bostrom, it will overtake us: 'Machine intelligence is the last invention that humanity will ever need to make.'

Kevin Kelly talks about the history of AI and where it's headed, touching on the idea of machines becoming conscious or superintelligent.

Allan Savory has devoted his life to stopping desertification. He now believes -- and his work so far shows -- that a surprising factor can protect grasslands and even reclaim degraded land that was once desert.

Majora Carter redefined the field of environmental equality, starting in the South Bronx by pulling her community out of decline with green initiatives and rethinking sustainable urban development.

At his carpet company, Ray Anderson has increased sales and doubled profits while turning the traditional 'take / make / waste' industrial system on its head. In a gentle, understated way, he shares a powerful vision for sustainable commerce.

Scared of superintelligent AI? You should be, says neuroscientist and philosopher Sam Harris -- and not just in some theoretical way. We're going to build superhuman machines, says Harris, but we haven't yet grappled with the politics and ethics of how best to contain and manage them.

As we expect more from technology, do we expect less from each other? Sherry Turkle studies how our devices and online personas are redefining human connection and communication -- and asks us to think deeply about the new kinds of connection we want to have.

Adam Alter shares his research on how time spent looking at screens is increasing -- and how it's affecting our well-being and happiness.

A handful of people working at a handful of tech companies steer the thoughts of billions of people every day, from running elections to what we see and think. Tristan Harris argues that technology is hijacking our attention and what we can do about it.