Identifying animals and plants, restoring habitats https://berlin.nabu.de/

The Berlin senate helps to support a variety of projects – have a look: https://www.berlin.de/senuvk/natur_gruen/biologische_vielfalt/de/aktiv/index.shtml

Polically engaged in a wide variety of topics

https://greenpeace.berlin/

Want to set up an Umwelt AG /climate club in school?

Here are some tips: https://www.schule-klima-wandel.de/

https://www.bigkarriere.de/karrierewelt/schule/umweltschutz-schulen

Useful films you can watch (in German)

https://www.planet-schule.de/sf/filme-online.php