Lights are off but everyone's in: Thousands of cities and towns
around the world join in the big switch off as part of annual green
campaign Earth Hour
More than 7,000 towns
and cities across the globe are plunging themselves into darkness to
mark Earth Hour, an annual event coordinated by the World Wide Fund for
Nature (WWF) to raise awareness of climate change and other
environmental causes.
Prayers: People gather Tuesday,
March 25, 2014, at a candlelight vigil in Arlington, for the victims of a
massive mudslide that struck the nearby community of Oso, Washington
One of nature’s most remarkable exhibitions
