Switch the lights off for an hour, for the good of the planet.
A tree-mendous day out in Zone 1.
Get the candles out for Earth Hour.
Hope you've been eating all your carrots.
The countdown to Earth Hour begins.
Earth Hour's back.
Candles ready this weekend.
Will you be switching your lights off?
Join Piccadilly Circus, Trafalgar Square, the National Gallery, the Royal Albert Hall, The Gherkin, London Eye, the National Theatre and Wembley Stadium by turning off the lights this Saturday night.
News snippets for the first day of spring. It was rather lovely today, now wasn't it?
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