Why don't we cover the desert with solar pane...

Will progress in artificial intelligence continue to accelerate, or have we already hit a plateau? Computer scientist Jennifer Golbeck interrogates some of the most high-profile claims about the promises and pitfalls of AI, cutting through the hype to clarify what's worth getting ...  Show more

“In climate tech, we don’t like talking about money,” says TED Tech host Sherrell Dorsey, but what if avoiding money talk is hurting the planet more than we realize? In this episode, Sherrell is sharing two talks on the past and future of farming and sustainability. Entrepreneur ...  Show more

Caltech research scientist Austin Fikes talks about capturing solar energy in space with a satellite that would relay the power to Earth.

Deep beneath your feet is a molten ball of energy the same temperature as the surface of the sun -- an immense clean energy source that could power the world thousands of times over, says technologist and climate activist Jamie C. Beard. How do we tap it? She lays out a surprisin ...  Show more

From Lawrence of Arabia to Star Wars via tales of intrepid adventurers traversing lonely sand-swept landscapes, deserts have always had a powerful pull on the popular imagination. But if a desert is full of sand, where did all that sand come from in the first place? That is wh ...

As the world slowly moves away from using fossil fuels for electricity, one tiny Scottish island has proved it’s possible to rely almost entirely on renewables.

The inner Hebridean isle of Eigg used to get its power from diesel generators. But in 2008 its residents launc ...