Sydney at night, photo by Nick Lomb
A major city like Sydney needs to be lit both in its CBD and in its suburbs, but how much light do we need? Does more light make it safer on the streets? Does more light make it easier to see? Do office blocks really need to blaze like Christmas trees all night, every night?
Did you know that at least one million tonnes of greenhouse gases are pumped into the atmosphere each year because of outdoor lighting in Australia? Or that there are strong indications of serious health risks associated with night time lighting?
There are good news though for Earth-Hour on the evening of 31 March 2007 indicates the growing awareness of the need to conserve energy and to stop wasting it with unnecessary lighting.
Come and find at more on Monday 5 February at 6:30 pm at Sydney Observatory when Nick will be talking to the Sydney City Skywatchers. The title of the talk is “Tales from the dark side: fighting light pollution in Sydney”.
All welcome! Entry is a bargain $2 for a light supper and a door prize.