San Francisco officials hope the Bay Lights project will change that perception and boost tourism to the area.

CNN: San Francisco turns a bridge into art with 25,000 lights

When the current Stormont session ends in the summer, I hope someone remembers to turn the lights out.

BBC: Jim Fitzpatrick

Given that it is economic growth which makes life better for people it really does seem absurd to be turning lights off in the hope of creating better lives for people.

FORBES: Celebrate Earth Hour By Turning the Lights *On*

There are some bright lights in Congress giving hope.

CNN: SHARE THIS

Organisers expect hundreds of towns and cities across the world to take part in the event and hope some capitals not officially involved, such as London and Rome, will mark the event by dimming lights on some landmarks.

BBC: Cities dim lights for environment