As more U.S. businesses go solar, IKEA says it will rely on the sun and wind to produce all the power it uses at its stores and buildings worldwide within a decade. The retailer plans to install more rooftop solar panels, erect wind farms and reduce its energy usage by replacing 1.2 million incandescent light bulbs with 85 percent-more-efficient LEDs (light-emitting diodes.) Read the USA Today story here.