It’s organised by World Wildlife Foundation (WWF) to promote greater awareness on climate change.

All you have to do is to switch off your lights for an hour at 830pm (wherever you are) on 28 March.

You simply can’t miss it this year, it’s splashed all across our Singapore mass media:

TodayOnline

A dark, green, snowball effect: 300 companies, and counting, to switch off their lights

Earth Hour = Happy Hour

Get officially involved

Electric New Paper

Lights out for a good cause

Straits Times (subscription required)

Earth Hour set to be bigger here this year

Highlights of this year’s Earth Hour

Lianhe Zaobao (Mandarin)

这个星期六　让我们熄灯一小时 (Let’s switch off the lights for an hour this Saturday)

The big difference this year is the enthusiastic participation of companies. At last count on the Earth Hour web site, there’re over 530 participating organisations.

(Star Bamboo would have been a participant, the only problem is that we’re already closed on Saturdays. So how do we join in? I would have preferred it to be on a Friday.)

Anyway that’s definitely a big increase over the number of participants last year, which I recall had a rather muted response. In fact, Earth Hour 2008 was so unmemorable for me I almost confused it with Live Earth 2007!

I’ll end with a video message from our very own eco-celebrity, Nadya Hutagalung, who’s leading by example in building her eco-house.

(I’m having trouble embedding the Youtube video, you can check it out here instead.)