Taking care of the environment can also be a fun and collective activity. I take part in citizen science initiatives on botany and the environment, such as the 'Biodiversity Sampling Week' organized by the University of Florence and the various 'Bioblitz' events it promotes across Tuscany, and I never forget to contribute to iNaturalist during my walks (look the app up, it's very easy!). I've also given a little help to the botanists carrying out a floristic study of a valley near Florence (acknowledged there for my research on the laurel in Etruscan culture).
If you'd like to do the same, it's easier than it looks: most citizen-science initiatives run by universities are open to anyone. If you're in Florence, keep an eye on the programme of Firenze per il clima and check whether PlantDive_Lab or Lab Fisiologia Vegetale UNIFI are organizing something cool!
As for me, much of my love for botany comes from joining my father, a botanist and mountaineer, in his fieldwork. In my free time I'm also an avid hiker (always Leave No Trace!), and I read widely on plants and environmental protection, from Mancuso to Pollan. I really hope I can do my small part in building a sustainable future, one where our descendants can still go on walks in pristine nature.