Not sure if this thread is necessary, but I'd like to know how to get in to this field. (Admins can delete if no messages after 3 days)

How can I find protest groups e.g like the 'klima-kleber' here in europe. I find myself lost, when I hear that some klima kleber grouped up on a specific street in my neighbourhood but never heared or knew about it, yet in the pictures I see photographers there.
Are there forums where I can gather dates and meetups?
I personally don't care for what they're fighting for, but would like to be present and take pictures. I think that would maybe ease up my fear of street photography.