Climate Compass on MSN

LED blue light risk: The health warning lighting brands don't have to share

When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...
Newsweek

How the Blue LED Changed the World, and Won a Nobel Prize

Their inventions have found their way into bedside lamps, television screens, and smartphones, and have the potential to give light to the 1.5 billion people who don't have access to electricity grids ...