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Understanding and Changing Public Littering Behavior Dr. Erik Garrett Duquesne University

Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

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Page 1: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Understanding and Changing Public Littering

Behavior Dr. Erik Garrett

Duquesne University

Page 2: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Why do people litter?Understanding the litterbug.

Page 3: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

A Few Reasons People Litter Peer pressure Lack of easy access to

garbage receptacles Anonymity No perceived

punishment Anti-authority Someone else will take

care of it Education (especially

children)

Page 4: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Broken Windows Theory Signs of disorder (such

as broken windows) cause more disorder

When we observe the violation of a social norm we are more likely to violate that norm ourselves (herd mentality)

Broken window = More broken windows

Litter = More litter

Page 5: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Movie Theater Syndrome Why do some

people leave their garbage in their seats after going to the movies? Anonymous (dark) Someone else’s

job The movie theater

is not their house

Page 6: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

What can we do to change littering behavior in Pittsburgh?

Developing a comprehensive strategic anti-litter campaign

Page 7: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Developing a Comprehensive and Strategic Behavior Change

Campaign 1. Must not be top

down - Involve the community from the start

2. Develop a comprehensive campaign Public-Private-

Government Balance Prevention and

Punitive Responses 3. Collect good data 4. Be creative

Page 8: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Audience and Pittsburgh’s Unique Neighborhoods

Must not be top down and hierarchical Need to involve the

community at the very start of any campaign

Different motivations work for different groups

Specifically target youth Power of competition

PRC – “Crying Steeler Fan” Anti-Litter Video Contest

Page 9: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Just Having a Campaign Helps States with slogans

and a campaign to fight litter score better on the DOT American State Litter Scorecard

Page 10: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Public and Private Partnerships McDonalds in

Sweden gave away free cheeseburgers, hamburgers, and Big Macs when you brought in a certain number of recyclable cans

Page 11: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Need Preventative and Punitive Responses

Page 12: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

“Knowledge is Power” Data collection is

really important Sometimes a

problem is solved just by shifting a garbage can

Page 13: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Creative Toronto Example

Page 14: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Hong Kong Example

Page 15: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Why bother with an anti-litter campaign?

Page 16: Understanding and Changing Public Littering Behaviorapps.pittsburghpa.gov/mayor/Behavioral_Change_-_Garrett.pdfUnderstanding and Changing Public Littering Behavior Dr. Erik Garrett

Why This Matters Direct costs Connections to

increase in crime Public health and

safety Civic pride and

community identity Ecological impact Future generations