Just launch a small project. The objective of this project is to motivate people to take action and do small changes in life and what impact these changes can I have in the world.
Basically you can track with one click when you save a plastic bag, a straw, etc. Then you can see the compound effect of these actions had in statistics, how many grams of carbon dioxide emissions, how many bags you saved etc..
You can check it at:
https://ichange.world