Score for the planet: Gamification for green energy habits

The „Cool Choices“ card game rewards eco-friendly actions with points based on CO2 savings and difficulty, fostering long-term behaviour change

 

Next Nudge

Thirty empty bottles buy a metro ride in Rome

With no bottle deposit in Italy, Rome’s metro pays 5 cents per PET bottle in travel credit. In seven months, 2.8 million bottles came back.

 

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