Engineers knew how to build electric cars long before the advent of Tesla Motors. Yet for more than a century, we've mainly relied on the gasoline-powered combustion engine to get us from point A to point B. Why?
The Greek government is speeding up its energy transition by promoting wind energy in particular. But resistance to wide-ranging wind farm construction is growing on Evia, a large island near Athens.
Around the world, billions are being spent on developing nuclear fusion. The aim is to secure a source of abundant, clean energy. Are we on the brink of a breakthrough?