Within JouleBug there are Communities; some are small groups of people that want to connect over sustainability, and others are large organizations like universities or cities, that want to engage their populations. JouleBug has paid subscription packages that allow organizations like these to localize the app for their community. This includes options for creating new Actions that they want their community members to have access to. You are probably following some members of these communities that have some extra Actions available to them.
If you want to learn more about Communities, you can here: https://joulebug.com/communities/
*The exception to the above explanation are two Actions with Mature Content: 'Drink Local' and 'Pour a Pint'. For these Actions to be available to Buzz, you must have your Facebook account connected and shared Basics Info so the app can see you're over 21.