This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. For more than a decade, an Australian company called Arafura Rare Earths has been looking for customers ...

Every year, hundreds to thousands of megawatts’ worth of wind turbines across the United States get a facelift. These aging turbines have their rotors swapped out, their blades replaced, and key ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Wind turbines are necessary for ensuring society’s sustainable ...

Wind turbines usually jut up from the ground like giant pinwheels. Now a company in China is exploring a new form factor: flying wind turbines. These zeppelin-like aircraft float high in the sky, ...

If you have ever seen a wind turbine in action, or simply being transported, you have an idea as to how massive they are. But have you ever wondered how big these things get in terms of sheer numbers?