Energy & Green Tech

Colorful films could help buildings, cars keep their cool

The cold blast of an air conditioner can be a welcome relief as temperatures soar, but "A/C" units require large amounts of energy and can leak potent greenhouse gases. Today, scientists report an eco-friendly alternative—a ...

Energy & Green Tech

Technology turns wasted heat into power

Researchers at Yale have developed a new technology that could make energy from the low-temperature wasted heat produced by industrial sources and power plants, tapping into a widely available—and mostly unused—resource.