Today’s the day this series was designed for, and Shiv’s “Less Light” provides a fitting conclusion about doing the green thing this evening:

Illustrator and art director Shiv uses a blend of photography and computer trickery to create a bewitching image to get us warmed up for Earth Hour tomorrow evening. Her poster urges us to switch off, save energy and enjoy the the galaxies above. Shiv said:

“I moved out of London nearer the countryside a couple of years ago and what I love is how much of the sky at night i can see now. I think Earth Hour is a great opportunity to see the stars while the urban lights are down, and that everyone should take advantage of this.”

Why?

Lighting our world accounts for 6% of global CO2 emissions – we need to start doing it more efficiently. Switching off our lights at night is a good start, but if every home in the U.S. replaced their five main light bulbs with Energy Star bulbs, the reduction in CO2 emissions would be equivalent of taking 10 million cars off the road. Two simple actions to help us reach one achievable goal.

How?

Are you and your friends and family switching off your lights for Earth Hour tomorrow? Have you made grand plans for how to spend your sixty minutes in the dark? If not, here are nine bright ideas for fun things we can do when the lights are off, like candlelit yoga, an unplugged jam session or a night-time bike ride.

Join the rest of the world in switching off your lights for Earth Hour this Saturday at 8:30 pm.