Back in 2005, Oprah got on TV, with Leonardo DiCaprio and his Prius, to warn us all of the dangers of global warming, urging us to swap out incandescent bulbs for more energy-conscious compact ...

To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been ...