Hey Potomac, Turn off Your Lights

In recognition of a global movement, Potomac residents are invited to turn off their lights for an hour this Saturday, March 23, starting at 8:30 p.m., for what is known as Earth Hour.

Coordinated by the World Wildlife Federation, Earth Hour is a symbolic global event meant to show concern about the environment. The WWF estimates that millions of people in 7,001 cities and towns across 152 countries participate each year.

Read more about Earth Hour and about the environment at www.earthhour.org.