The Effects of an Ambiguous, Negative Sign Prompt and a Clearly-Stated Positive Sign Prompt on Intentions to Litter

Cases
Horsley, A. D. (1988). The unintended effects of a posted sign on littering attitudes and stated intentions. Journal of Environmental Education, 19, 3, 10-14.
A literature review revealed that sign prompts can be effective in reducing the amount of litter. In order to further investigate the effects of prompts, a questionnaire was given…

Using Information and Prompts to Increase Awareness of an Environmental Product Tagging Program in Grocery Stores

Cases
Linn, N., Vining, J., & Feeley, P. A. (1994). Toward a sustainable society: Waste minimization through environmentally conscious consuming. Journal of Applied Social Psychology, 24, 17, 1550-1572.
A literature review revealed prompts were an effective behavior change tool in increasing the purchase of environmentally friendly products. Therefore, education and shelf tags we…

The Effects of Sign Prompts and Large Receptacles on Highway Littering in Richmond, Virginia

Cases
Finnie, W. C. (1973). Field experiments in litter control. Environment and Behavior, 5, 2, 123-144.
After conducting a literature review, sign prompts and waster receptacles were employed in a pilot program for highway litter control. There were three conditions in the pilot pro…

The Effects of an Ambiguous, Negative Sign Prompts and a Clearly-Stated Positive Sign Prompt on Intentions to Litter

Cases
Horsley, A. D. (1988). The unintended effects of a posted sign on littering attitudes and stated intentions. Journal of Environmental Education, 19, 3, 10-14.
A literature review revealed that sign prompts can be effective in reducing the amount of litter. In order to further investigate the effects of prompts, a questionnaire was given…

Using a Normative Appeal to Control Litter at a Public Swimming Pool

Cases
Reich, J. W., & Robertson, J. L. (1979). Reactance and norm appeal in anti-littering messages. Journal of Applied Social Psychology, 9, 1, 91-101.
A literature review revealed that a statement that puts an extreme demand on a person is likely to elicit the undesirable behavior. On the other hand, a statement that creates a n…

Motivating Community Recycling: New Zealand Curbside Trial

Cases
Randomly selected residents of New Zealand were asked to participate in a curbside recycling trial. Two weeks before the first collection they received a letter from the mayor tha…

Waste Wise Program

Cases
Waste Wise is a free, voluntary program set up by the United States Environmental Protection Agency (EPA) which attempts to eliminate costly municipal solid waste. Waste Wise targ…

Recycling at Festivals and Public Events

Cases
The international environmental agency for local governments (ICLEI) have a mission to build and serve a worldwide movement of local governments to achieve tangible improvements i…

Turn it Off: Anti-Idling Project Using Commitment, Prompts and Norms

Cases
This pilot project sought to decrease the frequency and duration of motorists idling their vehicle engines. The pilot project involved staff approaching motorists at Toronto schoo…

The Seafood Watch Program

Cases
The Seafood Watch program began as a list of sustainable seafood choices developed by the Monterey Bay Aquarium between 1997-1999. This list was developed in order to answer visit…

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