Geothermal has been the underdog of the energy industry - but that may be about to change as new startups use fracking technologies to expand potential geothermal sites.
Chinese companies dominate the EV battery supply chain and are expanding rapidly outside their home market. Meanwhile, competitors are looking to new chemistries to leapfrog the leading tech.
Humanoid robots that use AI are going mainstream, but they're far from proven. With billions of dollars invested, can they deliver real-world value or will they fall short of the hype?
This six-part, planet-spanning series offers a comprehensive look at the "impossible" industries vying to shape our future.
This six-part, planet-spanning series offers a comprehensive look at the "impossible" industries vying to shape our future.