Regarding the interaction with users, what about relying on methodologies such as https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement/2018-talanoa-dialogue-platform ?

I would imagine a kind of TEDx approach, where people are organising Talanoa dialogues within a community of dialogues under a common "brand"... EU climate scientists would be in the background, providing support when needed.

This is a very interesting suggestion, we will share with training colleagues!