Towards a bright future? The systems 
intelligent perspective on the 
management of light pollution 
Jari Lyytimäki 
Finnish Environment Institute SYKE, 
Environmental Policy Centre 
Future Infinite Academic: 
Sustainable Futures in a Changing Climate 
1112 June 2014, Helsinki, Finland 
Photo ©Moon-WillowStock
● Prevention of observation of 
celestial objects caused by artificial 
light 
● Artificial light that alters the natural 
patterns of light and dark in 
ecosystems 
● Light-at-night that causes adverse 
health effects 
● Artificial lighting that may cause 
harm to humans or nature 
2 
What is light pollution? 
photo: Wikimedia commmons, Mike GL, CC-BY-2.0
Why is light pollution important? 
● A global change: neglected ”grand challenge” 
● Light emissions are increasing 
● Causing various adverse effects on 
○ Astronomy 
○ Human health 
○ Ecosystems 
○ Culture 
○ Economy 
● Affected by rapid technological change (LEDs) 
● Largely uncontrolled environmental stressor
3.12.2014
The most easy-to-see global change 
Alaotsikko tai ingressi 
● Ensimmäinen taso 
○ toinen taso 
• kolmas taso 
5
Material & method 
● Online survey in Finland (Nov. 2011-Feb. 2012, N=2,053) 
● 20 likert-scale statements focusing on views about light 
pollution and use of lighting 
● Three open ended questions: 
○ When and where have you experienced light pollution 
as being particularly disturbing? What was the source of 
artificial light? 
○ In what kinds of places have you experienced natural 
dimness or darkness as pleasant? 
○ Have you attempted to reduce the light pollution or 
exposure to the disturbing light? How?
The most common sources of light pollution
9 
Type of action Examples 
Minimizing the 
exposure to light 
by changing own 
location 
Avoiding over-illuminated places (e.g. city centres) 
Changing the place of residence to the countryside 
Jogging and outdoor exercising in areas with no lighting 
Keeping insides in order to avoid disturbing light 
Minimizing the 
exposure to light 
by forestalling 
light trespass or 
glare 
Use of blinding curtains in windows 
Use of sleeping eye patches 
Building constructs or planting trees or bushes that block the light 
Using sunglasses or hats when driving or walking. 
Covering the signal lights of electric devices 
Closing the eyes or looking away from light source 
Consumer 
choices 
Avoiding the purchase of powerful lights and decorative lights 
Boycotting of fruits that have been grown in greenhouses 
Favouring of public transportation 
Prudent use of 
lights 
Switching off outdoor lights during the night hours 
Use of time switches, movement detectors and dimmers 
Avoidance of blinking LED-lights (e.g. bicycle lights) 
Careful use of car headlights and fog lights 
Favouring dim and comfortable overall lighting 
Using bright lights only where and when absolutely necessary
Type of action Examples 
Reducing the 
need for 
illumination 
Timing of outdoor activities according the natural light 
Making use of the moonlight 
Using reflectors to mark safe routes 
Avoidance of night-time car use 
Getting 
accustomed to 
natural light 
Teaching the children to cope without extensive lighting 
Learning away from unnecessary fear of darkness 
Spending a week without artificial light 
Favouring natural sources of light and candle light 
Influencing the 
lighting 
decisions 
Participation in housing cooperative boards 
Direct contacts with municipal authorities 
Direct contacts with those responsible of lighting (e.g. sport fields) 
Giving comments to the environmental permit processes 
Increasing 
awareness about 
light pollution 
Writing letters to the editor to the newspapers 
Informing decision makers 
Discussions with neighbours and work colleagues 
Getting attention to the term “light pollution”
Towards a systems intelligent light 
pollution management? 
● Systems intelligence emphasizes personal and active 
involvement with systems characterised by complex cross-scale 
interactions and non-linear feedbacks 
● Asks how an individual can understand the system and 
change it 
● Search for systemic leverage points opening up positive 
development paths 
● Can be seen as an approach for preventing and managing 
conflicts that arise when different preferences of the use of 
outdoor space collide 
● A focus on systems intelligence on a household level does 
not imply that the individual citizens are alone responsible 
for systemic changes. 
http://systemsintelligence.aalto.fi/
Systems intelligence approach 
may help to address: 
● Rebound effects related to increasing use of 
cost-efficient lighting technologies 
● Reverse tragedy of commons related to the 
darkness and lighting 
● Shifting baselines related to public 
understanding of night environment 
D. Robert CC BY-SA 2.0 
12
“For eons people have gazed at the 
skies and seen into their souls” 
Lisa Simpson 
The Simpsons, Season 14, Episode 16: “Scuse Me While I Miss the Sky”.
References 
● Lyytimäki J., Rinne J. (2013). Voices for the 
darkness: Online survey on public 
perceptions on light pollution as an 
environmental problem. Journal of Integrative 
Environmental Sciences 10(2): 127-139. 
● Lyytimäki J. (2013). Nature's nocturnal 
services: light pollution as a non-recognised 
challenge for ecosystem services research 
and management. Ecosystem Services 3: 
e44-e48. 
● Rinne J., Lyytimäki, J. (2012). Vaivaako 
valosaaste? Verkkokyselyn tulosten 
yhteenveto. Suomen ympäristökeskuksen 
raportteja 24/2012. Suomen 
ympäristökeskus, Helsinki. 
http://hdl.handle.net/10138/39849 
14 
Benjamin Stäudinger CC-BY-2.0

Towards a bright future?

  • 1.
    Towards a brightfuture? The systems intelligent perspective on the management of light pollution Jari Lyytimäki Finnish Environment Institute SYKE, Environmental Policy Centre Future Infinite Academic: Sustainable Futures in a Changing Climate 1112 June 2014, Helsinki, Finland Photo ©Moon-WillowStock
  • 2.
    ● Prevention ofobservation of celestial objects caused by artificial light ● Artificial light that alters the natural patterns of light and dark in ecosystems ● Light-at-night that causes adverse health effects ● Artificial lighting that may cause harm to humans or nature 2 What is light pollution? photo: Wikimedia commmons, Mike GL, CC-BY-2.0
  • 3.
    Why is lightpollution important? ● A global change: neglected ”grand challenge” ● Light emissions are increasing ● Causing various adverse effects on ○ Astronomy ○ Human health ○ Ecosystems ○ Culture ○ Economy ● Affected by rapid technological change (LEDs) ● Largely uncontrolled environmental stressor
  • 4.
  • 5.
    The most easy-to-seeglobal change Alaotsikko tai ingressi ● Ensimmäinen taso ○ toinen taso • kolmas taso 5
  • 6.
    Material & method ● Online survey in Finland (Nov. 2011-Feb. 2012, N=2,053) ● 20 likert-scale statements focusing on views about light pollution and use of lighting ● Three open ended questions: ○ When and where have you experienced light pollution as being particularly disturbing? What was the source of artificial light? ○ In what kinds of places have you experienced natural dimness or darkness as pleasant? ○ Have you attempted to reduce the light pollution or exposure to the disturbing light? How?
  • 8.
    The most commonsources of light pollution
  • 9.
    9 Type ofaction Examples Minimizing the exposure to light by changing own location Avoiding over-illuminated places (e.g. city centres) Changing the place of residence to the countryside Jogging and outdoor exercising in areas with no lighting Keeping insides in order to avoid disturbing light Minimizing the exposure to light by forestalling light trespass or glare Use of blinding curtains in windows Use of sleeping eye patches Building constructs or planting trees or bushes that block the light Using sunglasses or hats when driving or walking. Covering the signal lights of electric devices Closing the eyes or looking away from light source Consumer choices Avoiding the purchase of powerful lights and decorative lights Boycotting of fruits that have been grown in greenhouses Favouring of public transportation Prudent use of lights Switching off outdoor lights during the night hours Use of time switches, movement detectors and dimmers Avoidance of blinking LED-lights (e.g. bicycle lights) Careful use of car headlights and fog lights Favouring dim and comfortable overall lighting Using bright lights only where and when absolutely necessary
  • 10.
    Type of actionExamples Reducing the need for illumination Timing of outdoor activities according the natural light Making use of the moonlight Using reflectors to mark safe routes Avoidance of night-time car use Getting accustomed to natural light Teaching the children to cope without extensive lighting Learning away from unnecessary fear of darkness Spending a week without artificial light Favouring natural sources of light and candle light Influencing the lighting decisions Participation in housing cooperative boards Direct contacts with municipal authorities Direct contacts with those responsible of lighting (e.g. sport fields) Giving comments to the environmental permit processes Increasing awareness about light pollution Writing letters to the editor to the newspapers Informing decision makers Discussions with neighbours and work colleagues Getting attention to the term “light pollution”
  • 11.
    Towards a systemsintelligent light pollution management? ● Systems intelligence emphasizes personal and active involvement with systems characterised by complex cross-scale interactions and non-linear feedbacks ● Asks how an individual can understand the system and change it ● Search for systemic leverage points opening up positive development paths ● Can be seen as an approach for preventing and managing conflicts that arise when different preferences of the use of outdoor space collide ● A focus on systems intelligence on a household level does not imply that the individual citizens are alone responsible for systemic changes. http://systemsintelligence.aalto.fi/
  • 12.
    Systems intelligence approach may help to address: ● Rebound effects related to increasing use of cost-efficient lighting technologies ● Reverse tragedy of commons related to the darkness and lighting ● Shifting baselines related to public understanding of night environment D. Robert CC BY-SA 2.0 12
  • 13.
    “For eons peoplehave gazed at the skies and seen into their souls” Lisa Simpson The Simpsons, Season 14, Episode 16: “Scuse Me While I Miss the Sky”.
  • 14.
    References ● LyytimäkiJ., Rinne J. (2013). Voices for the darkness: Online survey on public perceptions on light pollution as an environmental problem. Journal of Integrative Environmental Sciences 10(2): 127-139. ● Lyytimäki J. (2013). Nature's nocturnal services: light pollution as a non-recognised challenge for ecosystem services research and management. Ecosystem Services 3: e44-e48. ● Rinne J., Lyytimäki, J. (2012). Vaivaako valosaaste? Verkkokyselyn tulosten yhteenveto. Suomen ympäristökeskuksen raportteja 24/2012. Suomen ympäristökeskus, Helsinki. http://hdl.handle.net/10138/39849 14 Benjamin Stäudinger CC-BY-2.0

Editor's Notes

  • #14 TV-series The Simpsons, Season 14, Episode 16: “Scuse Me While I Miss the Sky”. First aired March 30, 2003