Welcome to Science Saturday, where the Overnight News Digest crew informs and entertains you with this week's news about science, space, and the environment.
This week's featured story comes from MSNBC.
Cities are going dark for Earth Hour
By John Roach
Cities around the world are going dark on Saturday night for the annual Earth Hour event, which aims to raise awareness about actions people can take for the environment's sake.To read about the events that have taken place already, read the press release from Earth Hour and the WWF.The campaign, now in its fourth year, boasting participation of more than 4,000 cities in 131 countries and territories around the world. Hundreds of millions of people are expected to turn off their lights and other non-essential appliances for an hour beginning at 8:30 p.m. local time.
The symbolic act is expected to darken major landmarks around the world, including the Sydney Opera House in Australia, the Eiffel Tower in Paris and casinos on the Las Vegas Strip.
More stories after the jump.