1 / 9

Let There Be Night

Let There Be Night. Information from www.nightwise.org. Safety from crime Visibility on roadways Comfort when walking at night Advertising. We need light, right?. But we don’t need light pollution!. What is light pollution?. Glare – light striking your eye

rahim-davidson
Download Presentation

Let There Be Night

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Let There Be Night Information from www.nightwise.org

  2. Safety from crime Visibility on roadways Comfort when walking at night Advertising We need light, right? But we don’t need light pollution!

  3. What is light pollution? • Glare – light striking your eye • Spillover – light that lights up more than it is supposed to • Skyglow – light that goes up and makes the sky “glow”

  4. Glare (light in your eyes)

  5. Spillover(light beyond where it should be)

  6. Skyglowlight that makes the sky “glow”

  7. Why should I care? • Spoils the view of stars • Reduces your ability to see in darkness • Costs money • Wastes energy • Confuses and harms wildlife (sea turtles)

  8. These are good lights(lights are shielded and aim down)

  9. Solutions • Aim lights downward • Use lights that are fully shielded • Reduce light output (not so bright)

More Related