Some door-to-door sales are leaving dissatisfied solar panel customers on the hook for tens of thousands of dollars. In many ...

Today, an increasing number of Chinese people are creating environmentally friendly landscapes on the roofs they cherish most, showcasing a tangible "Beautiful China" through their homes.

At the western tip of the Mojave Desert sits a mosaic of mirrors. They're part of a facility run by Heliogen, a solar-energy company that's developing a method to concentrate the power of sunlight.